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Timezone Converter

Add cities to compare their current local times.

About Timezone Converter

Convert a time from one zone to another and see the same moment in several cities at once. Built for scheduling meetings, calls and deadlines across countries.

Offsets and why they move

A time zone is an offset from UTC, but many zones change that offset twice a year for daylight saving. The gap between two cities is therefore not constant: London and New York are usually five hours apart, but for a few weeks each spring and autumn they are four, because the two regions switch on different dates.

The scheduling trap: a recurring 15:00 London call booked in January is still 15:00 London in July — but its New York time has shifted by an hour in between, and again back. Recurring meetings across zones need checking after every clock change.

Which cities do not change their clocks?

Türkiye has used permanent UTC+3 since 2016 with no seasonal change. Japan, India, China and most of Africa also stay fixed year-round. Where you have a choice, quoting a fixed-offset city removes an entire class of confusion.

How do I write a time so nobody misreads it?

Include the zone abbreviation and the UTC offset together, and use the 24-hour clock: '14:00 IST (UTC+3)'. Abbreviations alone are ambiguous — CST is used for three different zones, and BST means one thing in Britain and another in Bangladesh. For international invitations, sending a calendar file is safer than sending text at all.