Premium Converters
Loading
Loading, please wait.
Loading
Loading
Side-by-side clocks for cities worldwide. Plan meetings across time zones with live work-hours indicators.
Date & Time
Generated on May 23, 2026
Side-by-side clocks for cities worldwide. Plan meetings across time zones with live work-hours indicators.
The World Clock & Meeting Planner shows the current time in multiple cities side-by-side, with visual day/night indicators and a live tag for whether each city is in standard work hours (9 AM – 6 PM local time). Pin your most-frequently-needed cities and the list is saved to your device. Switch into 'Plan a meeting' mode to type a specific time in one city's zone — every other clock then shows what that moment looks like locally, so you can find a slot that works for everyone.
Formula
Local time in zone Z = UTC + UTC-offset(Z, date). Each zone's offset varies through the year if it observes DST.If your family is scattered across Karachi, Toronto, Dubai, and Manchester, your phone has become a mental time-zone calculator and you have probably already missed a sibling's birthday because you texted at the wrong hour. The world clock fixes the part where you tab between Google searches for 'what time is it in London' — it just shows them all at once, with a clear day or night badge so you know whether you are about to wake someone up. The meeting-planner mode is the bigger deal for anyone working remote: you punch in one time in your own zone, and it shows the equivalent local time everywhere you have pinned. For Pakistani freelancers working with US or European clients, this is how you stop accidentally agreeing to a 2 AM call. Two specific landmines to remember: Pakistan does not observe DST, so when the UK or US 'fall back' or 'spring forward' your offset changes overnight without anything happening on your end. And India is 30 minutes ahead of Pakistan, not a full hour — the only South Asian country that uses a half-hour zone, and the thing that breaks every cross-border scheduling assumption.
The World Clock & Meeting Planner shows the current time in multiple cities side-by-side, with visual day/night indicators and a live tag for whether each city is in standard work hours (9 AM – 6 PM local time). Pin your most-frequently-needed cities and the list is saved to your device. Switch into 'Plan a meeting' mode to type a specific time in one city's zone — every other clock then shows what that moment looks like locally, so you can find a slot that works for everyone. Built on the IANA time-zone database (via the browser's `Intl` API), so it correctly handles daylight-saving transitions worldwide.
The IANA time-zone database is the world's authoritative source for time-zone definitions, maintained at iana.org/time-zones. Each zone (like 'Asia/Karachi' or 'Europe/London') has a complete history of UTC offsets and DST transitions. Browsers ship this database and expose it via `Intl.DateTimeFormat`, which is what this clock uses — so the times are accurate to the second. Pakistan does NOT observe DST (UTC+5 year-round). Most of Europe, North America, and Australia observe DST with different start/end dates. Some unusual zones: India (UTC+5:30), Nepal (UTC+5:45), Newfoundland (UTC−3:30), parts of Iran (UTC+3:30, +4:30 with DST).
Karachi (UTC+5) is 9 hours ahead of New York (UTC−4 in summer / −5 in winter). A 9 AM Karachi meeting = midnight or 1 AM in New York.
London (UTC+0/+1) is 4-5 hours ahead of New York and 4-5 hours behind Karachi. Often the best meeting time for PK ↔ US teams: 5-6 PM Karachi = 1-2 PM London = 8-9 AM New York.
Dubai (UTC+4) is 1 hour behind Karachi, so PK ↔ UAE meetings are usually easy.
India ↔ Pakistan: India is 30 minutes AHEAD of Pakistan (IST = UTC+5:30 vs PKT = UTC+5).
Australia is split into 3 zones (Sydney UTC+10/+11, Brisbane +10 no DST, Perth +8). The Australian east coast is 5 hours ahead of Karachi.
Working with Tokyo (UTC+9) from Karachi (UTC+5): 4-hour gap. 9 AM Karachi = 1 PM Tokyo.
Jump to a ready-made conversion — useful for quick reference and sharing:
Age Calculator
Calculate exact age in years, months, and days from any date of birth, plus total days lived, the day of the week you were born, and days until your next birthday.
Date Difference Calculator
Find the exact difference between any two dates expressed in years, months, weeks, days, hours, and minutes — ideal for project timelines, contract terms, and genealogy.
Working Days Calculator
Count business days between two dates, excluding Saturdays and Sundays, with customizable workweeks (Mon–Fri, Mon–Sat, or Sun–Thu) for HR leave tracking and T+3 settlement.
Countdown Timer
Live countdown to any future date and time, ticking down in days, hours, minutes, and seconds — perfect for weddings, exam dates, product launches, Ramadan, and Eid.
Add / Subtract Days Calculator
Add or subtract any number of days, weeks, months, or years from any starting date with automatic handling of leap years, month-end rollovers, and Net-30 invoice terms.
Time Duration Calculator
Calculate elapsed time between two clock times in hours, minutes, total minutes, and decimal hours — with automatic overnight crossings for night shifts, payroll, and freelance billing.
Time Zone Converter
Convert times across PKT, EST, GMT, IST, JST, GST, and any other world time zone with automatic Daylight Saving adjustments — ideal for scheduling international meetings.
Pomodoro Timer
Focus timer with 25-min work sessions, 5-min breaks, and a long break every 4 cycles. Customizable durations + sound.
Browse all Date & Time calculators & converters
See every tool in this category, plus FAQs and category-specific guides.