Timezone Converter
Convert between any two timezones
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To Timezone
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Select timezones to see the offset
Current Time — Major Cities
Updates every 30 seconds
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Timezone Questions
What is UTC and why does it matter?+
UTC (Coordinated Universal Time) is the primary time standard by which the world regulates clocks. It is effectively the successor to GMT and does not change with daylight saving time. All other timezones are defined as offsets from UTC — for example, New York is UTC-5 in winter and UTC-4 in summer. Computers, servers and aviation all use UTC internally to avoid DST confusion.
How does Daylight Saving Time affect conversions?+
Daylight Saving Time (DST) shifts clocks forward by one hour in spring and back in autumn. Not all countries observe DST — Arizona (USA), Japan, China, India and most of Africa do not. This means the offset between two timezones can change by 1-2 hours at different times of year. This converter uses your browser's built-in timezone data which automatically accounts for current DST status.
What is the best time to schedule a meeting between London and New York?+
London is UTC+1 (BST) in summer and UTC+0 (GMT) in winter. New York is UTC-4 (EDT) in summer and UTC-5 (EST) in winter. The overlap is typically 5 hours. The best meeting window is 2pm-5pm London time which is 9am-12pm New York time — morning for New York, afternoon for London. Avoid scheduling before 9am or after 6pm local time for either party.
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