Time Zone Overlap Finder
Find overlapping working hours across multiple time zones. Visual hourly grid shows availability.
Schedule Across Time Zones Without the Confusion
Remote work has made timezone coordination a daily challenge. The worst scheduling mistakes happen when people mistakenly add or subtract the wrong offset — scheduling a call for 9 AM New York time while your Mumbai colleague ends up joining at 3 AM IST. Our Time Zone Overlap Finder visualises working-hours overlap across multiple cities simultaneously, showing you at a glance which hours are within working time for all participants.
Frequently Asked Questions
What is the time difference between India and USA? ▼
IST (India) is UTC+5:30. EST (New York/US East) is UTC-5 in winter, UTC-4 in summer (EDT). Difference: IST is 10.5 hours ahead of EST, 9.5 hours ahead of EDT. IST vs PST (Los Angeles): IST is 13.5 hours ahead (12.5 in US summer). Best overlap window: India morning 6–9 AM = US evening previous day.
How to schedule a meeting between India and UK? ▼
IST is UTC+5:30, GMT (UK) is UTC+0 (BST is UTC+1 in summer). IST is 5.5 hours ahead of GMT, 4.5 ahead of BST. India working hours 9 AM–6 PM IST = 3:30 AM–12:30 PM GMT. Practical overlap: UK afternoon 2–5 PM (GMT) = India 7:30–10:30 PM IST. Best time for calls: 9–10:30 AM GMT = 2:30–4 PM IST.
What is the best time for a global team meeting (India, US, Europe)? ▼
Finding a single time that works for India, USA and Europe is very difficult (there is minimal true overlap). Best compromise: 6–7 AM IST = 12:30–1:30 AM EST = 6:30–7:30 AM CET. Alternatively: late India afternoon 5–6 PM IST = 11:30 AM–12:30 PM EST = 5:30–6:30 PM CET. Always alternate the inconvenient slot fairly.
What does IST stand for and where is it used? ▼
IST stands for Indian Standard Time — UTC+5:30. It is used across all of India and Sri Lanka. Unlike most countries, India does not observe daylight saving time, making IST consistent year-round. The half-hour offset (+5:30 rather than a whole number) is one of the few in the world.