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1. World City & UTC Offset Converter
Enter your origin time and select your target city or timezone to calculate the exact local conversion with day and date accuracy.
CONVERTED TARGET TIME RESULT:
12:35 PM (Wednesday, 29/7/2026)
2. Simple Meeting & Event Planner
Pick your local meeting time to see what time it will be for international attendees.
Corresponding Global Hub Times:
3. 12-Hour (AM/PM) ↔ 24-Hour Military Time
Quickly convert standard clock format into 24-hour military format.
Standard 12-Hour: 06:30 PM
24-Hour / Military: 1830 Hours
4. Time Duration & Difference Calculator
Calculate the exact number of hours and minutes between two time periods.
Total Duration Elapsed:
8 Hours and 30 Minutes
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(${targetDayStr})
`;
}
} catch(e) {
document.getElementById('target-converted-time').textContent = timeVal;
}
}
function calculateMeetingPlanner() {
const inputTimeVal = document.getElementById('meeting-time').value;
if (!inputTimeVal) return;
const [hrs, mins] = inputTimeVal.split(':');
const meetingDate = new Date();
meetingDate.setHours(hrs, mins, 0);
const hubs = [
{ name: "New York (EST)", tz: "America/New_York" },
{ name: "London (GMT)", tz: "Europe/London" },
{ name: "Tokyo (JST)", tz: "Asia/Tokyo" },
{ name: "Sydney (AEST)", tz: "Australia/Sydney" }
];
let html = '';
hubs.forEach(hub => {
const hubTime = meetingDate.toLocaleTimeString('en-US', { timeZone: hub.tz, hour: '2-digit', minute: '2-digit', hour12: true });
html += `
${hub.name}
${hubTime}
`;
});
document.getElementById('meeting-hubs-output').innerHTML = html;
}
function convertMilitaryTime() {
const val = document.getElementById('military-input-time').value;
if (!val) return;
const [h, m] = val.split(':');
const hrsNum = parseInt(h, 10);
const ampm = hrsNum >= 12 ? 'PM' : 'AM';
const hrs12 = hrsNum % 12 || 12;
document.getElementById('format-12h').textContent = `${String(hrs12).padStart(2, '0')}:${m} ${ampm}`;
document.getElementById('format-24h').textContent = `${h}${m} Hours`;
}
function calculateDuration() {
const start = document.getElementById('start-time').value;
const end = document.getElementById('end-time').value;
if (!start || !end) return;
const [sh, sm] = start.split(':').map(Number);
const [eh, em] = end.split(':').map(Number);
let startMin = sh * 60 + sm;
let endMin = eh * 60 + em;
if (endMin < startMin) {
endMin += 24 * 60;
}
const diffMin = endMin - startMin;
const diffHrs = Math.floor(diffMin / 60);
const remMin = diffMin % 60;
document.getElementById('duration-result-text').textContent = `${diffHrs} Hours and ${remMin} Minutes`;
}
document.addEventListener('DOMContentLoaded', function() {
convertWorldTime();
calculateMeetingPlanner();
convertMilitaryTime();
calculateDuration();
});