How do I convert EST to PST?

PST is 3 hours behind EST. Subtract 3 hours from any EST time — for example, 9 AM EST is 6 AM PST.

How do I convert GMT to IST?

Indian Standard Time (IST) is 5 hours 30 minutes ahead of GMT. Add 5:30 to any GMT time — for example, 9 AM GMT is 2:30 PM IST.

What is the time difference between New York and London?

London is normally 5 hours ahead of New York. During daylight saving discrepancies (mid-March and late October to early November) the difference temporarily becomes 4 or 6 hours.

Time Zone Converter

Convert any time between any two world time zones — EST to PST, GMT to IST, UTC to local, PDT to CET. Type the source time, pick zones, see the result instantly with daylight-saving correctly applied.

Source date & time

From time zone

To time zone

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Common Conversions

EST to PST: Pacific is 3 hours behind Eastern. 9 AM EST = 6 AM PST.
EST to CST: Central is 1 hour behind Eastern. 9 AM EST = 8 AM CST.
PST to EST: Eastern is 3 hours ahead of Pacific. 9 AM PST = 12 noon EST.
GMT to EST: Eastern is 5 hours behind GMT (winter), 4 hours behind during EDT.
GMT to IST: India is 5:30 ahead of GMT. 9 AM GMT = 2:30 PM IST.
UTC to local: Detected automatically — your zone is shown above.
PDT to CET: CET is 9 hours ahead of PDT. 9 AM PDT = 6 PM CET.
EST to GMT: GMT is 5 hours ahead of EST. 9 AM EST = 2 PM GMT.
IST to GMT: GMT is 5:30 behind IST. 9 AM IST = 3:30 AM GMT.

How to Use the Converter

Enter the source date and time (defaults to "now" in your zone).
Pick the source zone (e.g., New York for EST/EDT, London for GMT/BST).
Pick the destination zone.
The result appears instantly, with correct daylight-saving offset for the chosen date.

Why Use a Time Zone Converter?

Two hidden traps when scheduling internationally:

DST mismatch. The US and Europe both observe DST but switch on different weekends — for two weeks each March and one week each October/November, the New York–London gap is 4 or 6 hours instead of the usual 5. Pure math is wrong.
Half-hour offsets. India, Iran, Newfoundland, Nepal, Myanmar, parts of Australia and the Chatham Islands all use non-integer offsets.

Our converter uses the IANA tz database, the same dataset every operating system uses, so DST and historical zone changes are always correctly applied.