How do I convert IST to EST?

IST (Indian Standard Time, UTC+5:30) is 10 hours and 30 minutes ahead of EST (Eastern Standard Time, UTC-5). So if it's 12:00 PM IST, it's 1:30 AM EST the same day. During EDT (summer), the difference is 9.5 hours.

What is the time difference between India and USA?

India (IST, UTC+5:30) is 10.5 hours ahead of Eastern Standard Time (EST, UTC-5), 11.5 hours ahead of Central Time, 12.5 hours ahead of Mountain Time, and 13.5 hours ahead of Pacific Standard Time (PST, UTC-8).

What is Daylight Saving Time (DST)?

Daylight Saving Time (DST) is the practice of moving clocks forward by 1 hour during summer months to make better use of daylight. The USA, EU, and Australia observe DST. India does not observe DST — IST remains UTC+5:30 year-round.

How many time zones does the world have?

The world has 24 standard time zones based on 15-degree longitude increments, but in practice there are 38+ distinct UTC offsets (including half-hour and quarter-hour offsets like IST UTC+5:30 and NPT UTC+5:45).

What is the best time for a meeting between India and the US?

The best overlap for India (IST) and USA East Coast (EST) is typically 8:00 PM – 10:00 PM IST (9:30 AM – 11:30 AM EST). For India and West Coast USA (PST), try 9:00 PM – 11:00 PM IST (7:30 AM – 9:30 AM PST).

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📅 Export Meeting to Calendar

Select a slot above then export as .ics for Google Calendar / Outlook

☀ DST (Daylight Saving Time) Tracker

Track when your cities switch to/from Daylight Saving Time and how it affects meetings

🌐 DST World Map Summary

USA / Canada (EDT)Mar 2nd Sun → Nov 1st Sun

European Union (CEST)Mar last Sun → Oct last Sun

UK (BST)Mar last Sun → Oct last Sun

Australia (AEDT)Oct 1st Sun → Apr 1st Sun

India (IST)No DST — UTC+5:30 always

China (CST)No DST — UTC+8 always

Japan (JST)No DST — UTC+9 always

UAE (GST)No DST — UTC+4 always

⚠ DST Impact on India-US Calls

IST vs EST (winter)IST is +10.5h

IST vs EDT (summer)IST is only +9.5h

IST vs PST (winter)IST is +13.5h

IST vs PDT (summer)IST is only +12.5h

IST vs GMT (winter)IST is +5.5h

IST vs BST (summer)IST is only +4.5h

⚠ Always recheck your recurring meetings in March and November when the US clock changes!

⏱ Timezone-Aware Pomodoro Timer

Stay focused across timezones. Perfect for remote teams.

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--:--:--
Asia/Kolkata · IST
---

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// Add to your HTML head: <script src="https://kjsynthora.com/widgets/clock.js"></script> // Then in your HTML: <div data-kjsynthora-clock data-tz="Asia/Kolkata" data-theme="dark"></div>

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Full IANA timezone database support including half-hour and quarter-hour offsets like IST (UTC+5:30) and NPT (UTC+5:45).

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Timezone-aware Pomodoro sessions with team focus windows. Know when your teammates are in their peak focus hours.

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Embed live clocks for any timezone on your website, Notion, or blog. iframe and JS snippet options with dark/light themes.

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Unix timestamp converter, ISO 8601 converter, time duration calculator, and date add/subtract utilities for developers.

🌍 Major Timezone Offsets

IST

+5:30

India

EST/EDT

-5/-4

US East

PST/PDT

-8/-7

US West

GMT/BST

0/+1

UK

CET/CEST

+1/+2

Europe

GST

+4

UAE/Dubai

SGT

+8

Singapore

JST

+9

Japan

AEST

+10

Sydney

NZST

+12

New Zealand

World Clock &Timezone Converter