Time Zone Converter
Convert times across multiple time zones instantly.
Popular Time Zone Conversions
Disclaimer: The results provided by this tool are estimates for informational purposes only. Actual values may vary. Please verify important calculations independently.
How time zone conversion works
Every conversion starts by anchoring a moment in Coordinated Universal Time. When you pick a specific date and time in one zone, the time zone converter first translates that wall-clock reading into a UTC instant by applying the source zone's offset for that particular date — including any daylight saving adjustment in force that day. Once you have a single UTC instant, every other zone can be computed independently by adding its own offset for the same date. This two-step approach avoids the accumulated error that creeps in when you try to convert directly from one non-UTC zone to another by chaining pairwise offsets.
Offsets themselves are not always whole hours. India runs at UTC+5:30, Nepal at UTC+5:45, Chatham Islands at UTC+12:45, and Newfoundland at UTC-3:30. The converter treats offsets as a number of minutes rather than hours to handle these cases cleanly. Live mode uses the system clock as the source instant and updates every second, which is why the displayed times in every card tick forward together even though they read different hours, minutes, and occasionally different calendar dates. Picking a custom date and time switches from live updates to a fixed moment that you control.
When daylight saving changes the answer
The most common source of confusion with any time zone converter is the roughly three-week gap each spring and fall when the US and Europe are on different daylight saving schedules. The US springs forward on the second Sunday of March, while most of Europe waits until the last Sunday of the month; in the fall the order reverses. During that window, the normal five-hour gap between New York and London temporarily becomes four hours. Southern Hemisphere zones like Sydney and Santiago shift in the opposite direction from the Northern Hemisphere, which widens or narrows their offset to Europe and North America by an hour each way around the equinoxes.
Practical tips: when scheduling something more than a few weeks out, pick the actual target date in the converter rather than using live mode, because live mode is anchored to today's DST state and may not reflect the offset that will be in force on the meeting date. When translating a natural-language time like 'Tuesday at 3 PM', always state the origin zone explicitly — 3 PM Pacific and 3 PM Eastern differ by three hours. Finally, countries occasionally change their DST rules; recent examples include Russia, Turkey, and parts of Mexico. A time zone converter backed by current timezone data handles these changes automatically, but always double-check borderline cases against a recent source.