{"id":3601,"date":"2025-03-20T17:19:10","date_gmt":"2025-03-20T17:19:10","guid":{"rendered":"https:\/\/securitybriefing.net\/?p=3601"},"modified":"2025-03-20T17:44:33","modified_gmt":"2025-03-20T17:44:33","slug":"hvor-lang-tid-er-600-sekunder","status":"publish","type":"post","link":"https:\/\/securitybriefing.net\/da\/data\/hvor-lang-tid-er-600-sekunder\/","title":{"rendered":"Hvor lang tid er 600 sekunder?"},"content":{"rendered":"<div class=\"time-calculator-container\">    \n    <div class=\"quick-answer-section\">\n        <div class=\"quick-answer\">\n            <span>600 sekunder = 10 minutter = 1\/6 af en time = 0,1667 timer = 0,0069 dage = 600.000 millisekunder<\/span>\n        <\/div>\n        \n        <div class=\"timer-container\">\n            <div class=\"timer\" id=\"countdownTimer\">\n                <svg class=\"progress-ring\" width=\"160\" height=\"160\">\n                    <circle class=\"progress-ring__circle-bg\" stroke=\"#e0e0e0\" stroke-width=\"8\" fill=\"transparent\" r=\"70\" cx=\"80\" cy=\"80\"\/>\n                    <circle class=\"progress-ring__circle\" stroke=\"#44D1AB\" stroke-width=\"8\" fill=\"transparent\" r=\"70\" cx=\"80\" cy=\"80\"\/>\n                <\/svg>\n                <div class=\"time\">10:00<\/div>\n            <\/div>\n            <button id=\"startTimerBtn\" class=\"timer-button\">Start 600 sekunders timer<\/button>\n        <\/div>\n    <\/div>\n    \n    <div class=\"calculator-section\">\n        <h2>Lommeregner til tidsomregning<\/h2>\n        <div class=\"calculator\">\n            <div class=\"input-group\">\n                <input type=\"number\" id=\"secondsInput\" placeholder=\"Indtast sekunder\" value=\"600\">\n                <button id=\"calculateBtn\">Konverter<\/button>\n            <\/div>\n            \n            <div class=\"results\" id=\"calculationResults\">\n                <div class=\"result-item\">\n                    <span class=\"result-label\">Referat:<\/span>\n                    <span class=\"result-value\" id=\"minutesResult\">10<\/span>\n                <\/div>\n                <div class=\"result-item\">\n                    <span class=\"result-label\">\u00c5bningstider:<\/span>\n                    <span class=\"result-value\" id=\"hoursResult\">0.1667<\/span>\n                <\/div>\n                <div class=\"result-item\">\n                    <span class=\"result-label\">Dage:<\/span>\n                    <span class=\"result-value\" id=\"daysResult\">0.0069<\/span>\n                <\/div>\n                <div class=\"result-item\">\n                    <span class=\"result-label\">Millisekunder:<\/span>\n                    <span class=\"result-value\" id=\"msResult\">600,000<\/span>\n                <\/div>\n                <div class=\"result-item\">\n                    <span class=\"result-label\">Mikrosekunder:<\/span>\n                    <span class=\"result-value\" id=\"microResult\">600,000,000<\/span>\n                <\/div>\n                <div class=\"result-item\">\n                    <span class=\"result-label\">L\u00e6sbart for mennesker:<\/span>\n                    <span class=\"result-value\" id=\"readableResult\">600 sekunder = pr\u00e6cis 10 minutter<\/span>\n                <\/div>\n            <\/div>\n        <\/div>\n        \n        <div class=\"reverse-calculator\">\n            <h3>Omvendt lommeregner<\/h3>\n            <div class=\"input-group\">\n                <input type=\"number\" id=\"minutesInput\" placeholder=\"Indtast minutter\" value=\"10\">\n                <button id=\"reverseCalculateBtn\">Konverter til sekunder<\/button>\n            <\/div>\n            <div class=\"result-item\">\n                <span class=\"result-label\">Sekunder:<\/span>\n                <span class=\"result-value\" id=\"reverseResult\">600<\/span>\n            <\/div>\n        <\/div>\n    <\/div>\n    \n    <div class=\"conversion-table-section\">\n        <h2>Tabel til omregning af tid<\/h2>\n        <div class=\"table-container\">\n            <table class=\"conversion-table\">\n                <thead>\n                    <tr>\n                        <th>Sekunder<\/th>\n                        <th>Referat<\/th>\n                        <th>Timer<\/th>\n                        <th>Millisekunder<\/th>\n                        <th>Dage<\/th>\n                    <\/tr>\n                <\/thead>\n                <tbody>\n                    <tr>\n                        <td>60 sekunder<\/td>\n                        <td>1 min.<\/td>\n                        <td>0,0167 time<\/td>\n                        <td>60.000 ms<\/td>\n                        <td>0,0007 dag<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>300 sek.<\/td>\n                        <td>5 minutter<\/td>\n                        <td>0,0833 time<\/td>\n                        <td>300.000 ms<\/td>\n                        <td>0,0035 dag<\/td>\n                    <\/tr>\n                    <tr class=\"highlighted\">\n                        <td>600 sek.<\/td>\n                        <td>10 minutter<\/td>\n                        <td>0,1667 time<\/td>\n                        <td>600.000 ms<\/td>\n                        <td>0,0069 dag<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>1.800 sek.<\/td>\n                        <td>30 minutter<\/td>\n                        <td>0,5 time<\/td>\n                        <td>1.800.000 ms<\/td>\n                        <td>0,0208 dag<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>3.600 sek.<\/td>\n                        <td>60 minutter<\/td>\n                        <td>1 time<\/td>\n                        <td>3.600.000 ms<\/td>\n                        <td>0,0417 dag<\/td>\n                    <\/tr>\n                <\/tbody>\n            <\/table>\n        <\/div>\n    <\/div>\n    \n    <div class=\"real-life-context\">\n        <h2>Hvad kan du g\u00f8re p\u00e5 600 sekunder?<\/h2>\n        <div class=\"activities-grid\">\n            <div class=\"activity-card\">\n                <div class=\"activity-icon\">\ud83e\udd5a<\/div>\n                <div class=\"activity-title\">Kog et \u00e6g<\/div>\n                <div class=\"activity-time\">6-10 minutter<\/div>\n            <\/div>\n            <div class=\"activity-card\">\n                <div class=\"activity-icon\">\ud83c\udfb5<\/div>\n                <div class=\"activity-title\">Lyt til 2-3 popsange<\/div>\n                <div class=\"activity-time\">~3 minutter hver<\/div>\n            <\/div>\n            <div class=\"activity-card\">\n                <div class=\"activity-icon\">\ud83c\udfc3<\/div>\n                <div class=\"activity-title\">L\u00f8b 1-2 km (gennemsnitligt tempo)<\/div>\n                <div class=\"activity-time\">8-12 minutter<\/div>\n            <\/div>\n            <div class=\"activity-card\">\n                <div class=\"activity-icon\">\u2615<\/div>\n                <div class=\"activity-title\">Bryg en fransk pressekaffe<\/div>\n                <div class=\"activity-time\">4 minutter + forberedelse<\/div>\n            <\/div>\n            <div class=\"activity-card\">\n                <div class=\"activity-icon\">\ud83e\uddd8<\/div>\n                <div class=\"activity-title\">Mediter eller tag en powernap<\/div>\n                <div class=\"activity-time\">10 minutter<\/div>\n            <\/div>\n            <div class=\"activity-card\">\n                <div class=\"activity-icon\">\ud83c\udf5c<\/div>\n                <div class=\"activity-title\">Kog instant-nudler<\/div>\n                <div class=\"activity-time\">3-5 minutter<\/div>\n            <\/div>\n        <\/div>\n    <\/div>\n    \n    <div class=\"educational-section\">\n        <h2>\ud83d\udd0d Hvorfor 60 sekunder p\u00e5 et minut?<\/h2>\n        <div class=\"historical-insight\">\n            <p>Opdelingen af tiden i 60 sekunder pr. minut g\u00e5r tilbage til de gamle babyloniere, som brugte et sexagesimalt system (base 60) omkring 3000 f.Kr. Dette system var ideelt til beregninger, fordi 60 har mange divisorer (1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30), hvilket g\u00f8r det praktisk til br\u00f8ker.<\/p>\n            <p>Babylonierne arvede deres talsystem fra sumererne, som brugte det s\u00e5 tidligt som 3500 f.Kr. Senere overtog gr\u00e6ske astronomer som Hipparchus og Ptolemaios dette system til geografiske koordinater. Gennem islamiske forskere i middelalderen n\u00e5ede denne tidsinddelingsmetode til sidst til Europa, hvor den blev standardiseret.<\/p>\n            <p>N\u00e6ste gang du ser 600 sekunder tikke af sted, oplever du et tidsm\u00e5lingssystem med r\u00f8dder, der er over 5.000 \u00e5r gamle!<\/p>\n        <\/div>\n    <\/div>\n    \n    <div class=\"psychology-section\">\n        <h2>Opfattelse af tid: Hvor lang tid f\u00f8les 600 sekunder?<\/h2>\n        <div class=\"perception-container\">\n            <div class=\"perception-item\">\n                <div class=\"perception-title\">Venter i k\u00f8 eller p\u00e5 en aftale<\/div>\n                <div class=\"perception-bar\">\n                    <div class=\"perception-fill\" style=\"width: 90%\"><\/div>\n                <\/div>\n                <div class=\"perception-label\">F\u00f8les meget lang<\/div>\n            <\/div>\n            <div class=\"perception-item\">\n                <div class=\"perception-title\">At arbejde p\u00e5 en udfordrende opgave<\/div>\n                <div class=\"perception-bar\">\n                    <div class=\"perception-fill\" style=\"width: 40%\"><\/div>\n                <\/div>\n                <div class=\"perception-label\">F\u00f8les moderat<\/div>\n            <\/div>\n            <div class=\"perception-item\">\n                <div class=\"perception-title\">Ser en interessant video<\/div>\n                <div class=\"perception-bar\">\n                    <div class=\"perception-fill\" style=\"width: 20%\"><\/div>\n                <\/div>\n                <div class=\"perception-label\">F\u00f8les kort<\/div>\n            <\/div>\n            <div class=\"perception-item\">\n                <div class=\"perception-title\">Spiller et videospil<\/div>\n                <div class=\"perception-bar\">\n                    <div class=\"perception-fill\" style=\"width: 10%\"><\/div>\n                <\/div>\n                <div class=\"perception-label\">F\u00f8les meget kort<\/div>\n            <\/div>\n        <\/div>\n        <p class=\"perception-note\">Tiden ser ud til at g\u00e5 langsommere, n\u00e5r vi keder os, er nerv\u00f8se eller venter. Den g\u00e5r hurtigere, n\u00e5r vi er engagerede, hygger os eller er fokuserede p\u00e5 en opgave. Dette er kendt som \"tidsopfattelsesparadokset\" inden for psykologien.<\/p>\n    <\/div>\n    \n    <div class=\"challenge-section\">\n        <h2>600 sekunders udfordring<\/h2>\n        <div class=\"challenge-container\">\n            <p>Tag udfordringen p\u00e5 600 sekunder! V\u00e6lg en aktivitet nedenfor, tryk p\u00e5 startknappen, og se, hvordan 10 minutter f\u00f8les:<\/p>\n            <div class=\"challenge-options\">\n                <button class=\"challenge-option\" data-activity=\"meditate\">Meditere<\/button>\n                <button class=\"challenge-option\" data-activity=\"journal\">Skriv i en dagbog<\/button>\n                <button class=\"challenge-option\" data-activity=\"stretch\">Lav str\u00e6k\u00f8velser<\/button>\n            <\/div>\n            <div class=\"challenge-timer-container\">\n                <div class=\"timer challenge-timer-display\">\n                    <svg class=\"progress-ring\" width=\"160\" height=\"160\">\n                        <circle class=\"progress-ring__circle-bg\" stroke=\"#e0e0e0\" stroke-width=\"8\" fill=\"transparent\" r=\"70\" cx=\"80\" cy=\"80\"\/>\n                        <circle class=\"progress-ring__circle-challenge\" stroke=\"#44D1AB\" stroke-width=\"8\" fill=\"transparent\" r=\"70\" cx=\"80\" cy=\"80\"\/>\n                    <\/svg>\n                    <div class=\"time\" id=\"challengeTimer\">10:00<\/div>\n                <\/div>\n                <button id=\"startChallengeBtn\" class=\"challenge-button\" disabled>V\u00e6lg en aktivitet f\u00f8rst<\/button>\n            <\/div>\n            <div id=\"challengeMessage\" class=\"challenge-message\" style=\"display: none;\">\n                <p>Hvordan f\u00f8ltes det? F\u00f8ltes 600 sekunder lange eller korte?<\/p>\n            <\/div>\n        <\/div>\n    <\/div>\n    \n    <div class=\"advanced-breakdown\">\n        <h2>Avanceret tidsopdeling<\/h2>\n        <table class=\"advanced-table\">\n            <tbody>\n                <tr>\n                    <td>Sekunder<\/td>\n                    <td>600 sek.<\/td>\n                <\/tr>\n                <tr>\n                    <td>Referat<\/td>\n                    <td>10 minutter<\/td>\n                <\/tr>\n                <tr>\n                    <td>Timer<\/td>\n                    <td>0,1667 time<\/td>\n                <\/tr>\n                <tr>\n                    <td>Millisekunder<\/td>\n                    <td>600.000 ms<\/td>\n                <\/tr>\n                <tr>\n                    <td>Mikrosekunder<\/td>\n                    <td>600.000.000 \u00b5s<\/td>\n                <\/tr>\n                <tr>\n                    <td>Nanosekunder<\/td>\n                    <td>600.000.000.000 ns<\/td>\n                <\/tr>\n                <tr>\n                    <td>Dage<\/td>\n                    <td>0,0069 dag<\/td>\n                <\/tr>\n                <tr>\n                    <td>Uger<\/td>\n                    <td>0,00099 uge<\/td>\n                <\/tr>\n            <\/tbody>\n        <\/table>\n    <\/div>\n<\/div>\n\n<style>\n    \/* Base styling *\/\n    .time-calculator-container {\n        font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;\n        max-width: 1200px;\n        margin: 0 auto;\n        padding: 30px;\n        color: #333;\n        line-height: 1.6;\n    }\n    \n    h1, h2, h3 {\n        color: #01175E;\n        margin-bottom: 20px;\n    }\n    \n    h1 {\n        font-size: 2.5rem;\n        text-align: center;\n        margin-bottom: 30px;\n    }\n    \n    h2 {\n        font-size: 1.8rem;\n        border-bottom: 2px solid #44D1AB;\n        padding-bottom: 10px;\n        margin-top: 40px;\n    }\n    \n    h3 {\n        font-size: 1.4rem;\n    }\n    \n    \/* Quick answer section *\/\n    .quick-answer-section {\n        display: flex;\n        flex-wrap: wrap;\n        justify-content: space-between;\n        align-items: center;\n        background-color: rgba(68, 209, 171, 0.1);\n        border-radius: 15px;\n        padding: 30px;\n        margin-bottom: 40px;\n    }\n    \n    .quick-answer {\n        flex: 1;\n        min-width: 300px;\n    }\n    \n    .quick-answer span {\n        font-size: 1.6rem;\n        font-weight: bold;\n        color: #01175E;\n        line-height: 1.4;\n    }\n    \n    .timer-container {\n        display: flex;\n        flex-direction: column;\n        align-items: center;\n        margin-left: 20px;\n    }\n    \n    .timer {\n        position: relative;\n        width: 160px;\n        height: 160px;\n        display: flex;\n        justify-content: center;\n        align-items: center;\n        margin-bottom: 15px;\n    }\n    \n    .time {\n        position: absolute;\n        font-size: 2rem;\n        font-weight: bold;\n        color: #01175E;\n        z-index: 2;\n    }\n    \n    .progress-ring {\n        position: absolute;\n        top: 0;\n        left: 0;\n    }\n    \n    .progress-ring__circle-bg {\n        stroke-opacity: 0.3;\n    }\n    \n    .progress-ring__circle, .progress-ring__circle-challenge {\n        stroke-dasharray: 440; \/* 2 * PI * 70 *\/\n        stroke-dashoffset: 0;\n        transform: rotate(-90deg);\n        transform-origin: 50% 50%;\n        transition: stroke-dashoffset 1s linear;\n    }\n    \n    .timer-button, .challenge-button, .challenge-option {\n        background-color: #44D1AB;\n        color: white;\n        border: none;\n        padding: 10px 20px;\n        border-radius: 25px;\n        font-weight: bold;\n        cursor: pointer;\n        transition: background-color 0.3s ease;\n    }\n    \n    .timer-button:hover, .challenge-button:hover, .challenge-option:hover {\n        background-color: #01175E;\n    }\n    \n    .timer-button:disabled, .challenge-button:disabled {\n        background-color: #cccccc;\n        cursor: not-allowed;\n    }\n    \n    \/* Calculator section *\/\n    .calculator-section {\n        background-color: #f9f9f9;\n        border-radius: 15px;\n        padding: 30px;\n        margin-bottom: 40px;\n        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);\n    }\n    \n    .calculator, .reverse-calculator {\n        margin-bottom: 30px;\n    }\n    \n    .input-group {\n        display: flex;\n        margin-bottom: 20px;\n    }\n    \n    input {\n        flex: 1;\n        padding: 12px 15px;\n        border: 2px solid #ddd;\n        border-radius: 8px;\n        font-size: 1rem;\n    }\n    \n    input:focus {\n        border-color: #44D1AB;\n        outline: none;\n    }\n    \n    button {\n        background-color: #01175E;\n        color: white;\n        border: none;\n        padding: 12px 20px;\n        margin-left: 10px;\n        border-radius: 8px;\n        cursor: pointer;\n        font-weight: bold;\n        transition: background-color 0.3s ease;\n    }\n    \n    button:hover {\n        background-color: #44D1AB;\n    }\n    \n    .results {\n        background-color: white;\n        border-radius: 8px;\n        padding: 20px;\n        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);\n    }\n    \n    .result-item {\n        display: flex;\n        justify-content: space-between;\n        padding: 10px 0;\n        border-bottom: 1px solid #eee;\n    }\n    \n    .result-item:last-child {\n        border-bottom: none;\n    }\n    \n    .result-label {\n        font-weight: bold;\n        color: #01175E;\n    }\n    \n    .result-value {\n        color: #44D1AB;\n        font-weight: 600;\n    }\n    \n    \/* Conversion table *\/\n    .table-container {\n        overflow-x: auto;\n    }\n    \n    .conversion-table {\n        width: 100%;\n        border-collapse: collapse;\n        margin-bottom: 30px;\n    }\n    \n    .conversion-table th, .conversion-table td {\n        padding: 15px;\n        text-align: center;\n        border-bottom: 1px solid #ddd;\n    }\n    \n    .conversion-table th {\n        background-color: #01175E;\n        color: white;\n    }\n    \n    .conversion-table tr:hover {\n        background-color: rgba(68, 209, 171, 0.1);\n    }\n    \n    .highlighted {\n        background-color: rgba(68, 209, 171, 0.2);\n        font-weight: bold;\n    }\n    \n    \/* Real-life context *\/\n    .activities-grid {\n        display: grid;\n        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));\n        gap: 20px;\n        margin-bottom: 30px;\n    }\n    \n    .activity-card {\n        background-color: white;\n        border-radius: 10px;\n        padding: 20px;\n        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);\n        text-align: center;\n        transition: transform 0.3s ease;\n    }\n    \n    .activity-card:hover {\n        transform: translateY(-5px);\n    }\n    \n    .activity-icon {\n        font-size: 2.5rem;\n        margin-bottom: 10px;\n    }\n    \n    .activity-title {\n        font-weight: bold;\n        color: #01175E;\n        margin-bottom: 5px;\n    }\n    \n    .activity-time {\n        color: #44D1AB;\n    }\n    \n    \/* Educational section *\/\n    .historical-insight {\n        background-color: rgba(1, 23, 94, 0.05);\n        border-left: 4px solid #01175E;\n        padding: 20px;\n        border-radius: 0 10px 10px 0;\n    }\n    \n    .historical-insight p {\n        margin-bottom: 15px;\n    }\n    \n    \/* Psychology section *\/\n    .perception-container {\n        margin: 30px 0;\n    }\n    \n    .perception-item {\n        margin-bottom: 20px;\n    }\n    \n    .perception-title {\n        font-weight: bold;\n        margin-bottom: 5px;\n    }\n    \n    .perception-bar {\n        height: 20px;\n        background-color: #e9e9e9;\n        border-radius: 10px;\n        overflow: hidden;\n    }\n    \n    .perception-fill {\n        height: 100%;\n        background-color: #44D1AB;\n        border-radius: 10px;\n    }\n    \n    .perception-label {\n        text-align: right;\n        font-size: 0.9rem;\n        color: #666;\n        margin-top: 5px;\n    }\n    \n    .perception-note {\n        font-style: italic;\n        color: #666;\n    }\n    \n    \/* Challenge section *\/\n    .challenge-container {\n        background-color: #f9f9f9;\n        border-radius: 15px;\n        padding: 30px;\n        text-align: center;\n    }\n    \n    .challenge-options {\n        display: flex;\n        justify-content: center;\n        flex-wrap: wrap;\n        gap: 15px;\n        margin: 20px 0;\n    }\n    \n    .challenge-timer-container {\n        display: flex;\n        flex-direction: column;\n        align-items: center;\n        margin: 30px 0;\n    }\n    \n    .challenge-timer-display {\n        margin-bottom: 20px;\n    }\n    \n    .challenge-message {\n        background-color: #44D1AB;\n        color: white;\n        padding: 15px;\n        border-radius: 10px;\n        font-weight: bold;\n        animation: fadeIn 0.5s ease;\n    }\n    \n    @keyframes fadeIn {\n        from { opacity: 0; }\n        to { opacity: 1; }\n    }\n    \n    \/* Advanced breakdown *\/\n    .advanced-table {\n        width: 100%;\n        border-collapse: collapse;\n    }\n    \n    .advanced-table td {\n        padding: 12px 15px;\n        border-bottom: 1px solid #ddd;\n    }\n    \n    .advanced-table tr td:first-child {\n        font-weight: bold;\n        color: #01175E;\n        width: 40%;\n    }\n    \n    .advanced-table tr:nth-child(even) {\n        background-color: rgba(68, 209, 171, 0.05);\n    }\n    \n    \/* Responsive design *\/\n    @media (max-width: 768px) {\n        .time-calculator-container {\n            padding: 15px;\n        }\n        \n        h1 {\n            font-size: 2rem;\n        }\n        \n        .quick-answer-section {\n            flex-direction: column;\n            padding: 20px;\n        }\n        \n        .quick-answer {\n            margin-bottom: 20px;\n            min-width: auto;\n        }\n        \n        .quick-answer span {\n            font-size: 1.2rem;\n        }\n        \n        .input-group {\n            flex-direction: column;\n        }\n        \n        input {\n            margin-bottom: 10px;\n        }\n        \n        button {\n            margin-left: 0;\n        }\n        \n        .activities-grid {\n            grid-template-columns: 1fr;\n        }\n    }\n<\/style>\n\n<script>\n    document.addEventListener('DOMContentLoaded', function() {\n        \/\/ Calculator functions\n        document.getElementById('calculateBtn').addEventListener('click', function() {\n            const seconds = parseFloat(document.getElementById('secondsInput').value);\n            if (isNaN(seconds)) return;\n            \n            const minutes = seconds \/ 60;\n            const hours = minutes \/ 60;\n            const days = hours \/ 24;\n            const milliseconds = seconds * 1000;\n            const microseconds = milliseconds * 1000;\n            \n            document.getElementById('minutesResult').textContent = minutes.toFixed(2);\n            document.getElementById('hoursResult').textContent = hours.toFixed(4);\n            document.getElementById('daysResult').textContent = days.toFixed(4);\n            document.getElementById('msResult').textContent = milliseconds.toLocaleString();\n            document.getElementById('microResult').textContent = microseconds.toLocaleString();\n            \n            \/\/ Human readable format\n            let readable = `${seconds} seconds = `;\n            if (seconds === 60) {\n                readable += \"exactly 1 minute\";\n            } else if (seconds % 60 === 0) {\n                readable += `exactly ${minutes} minutes`;\n            } else if (seconds < 60) {\n                readable += `less than 1 minute`;\n            } else {\n                const wholeMinutes = Math.floor(minutes);\n                const remainingSeconds = seconds % 60;\n                readable += `${wholeMinutes} minute${wholeMinutes !== 1 ? 's' : ''} and ${remainingSeconds} second${remainingSeconds !== 1 ? 's' : ''}`;\n            }\n            \n            document.getElementById('readableResult').textContent = readable;\n        });\n        \n        \/\/ Reverse calculator\n        document.getElementById('reverseCalculateBtn').addEventListener('click', function() {\n            const minutes = parseFloat(document.getElementById('minutesInput').value);\n            if (isNaN(minutes)) return;\n            \n            const seconds = minutes * 60;\n            document.getElementById('reverseResult').textContent = seconds;\n        });\n        \n        \/\/ 600 second timer\n        let countdown;\n        const circle = document.querySelector('.progress-ring__circle');\n        const circumference = 2 * Math.PI * 70; \/\/ 2\u03c0r (r=70)\n        circle.style.strokeDasharray = circumference;\n        circle.style.strokeDashoffset = '0';\n        \n        document.getElementById('startTimerBtn').addEventListener('click', function() {\n            if (countdown) {\n              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