Convert times between any two time zones instantly. Select your source and target time zones, enter the time, and see the converted result with day change indicators.
Hour
Min
Converted Time
2:00 PM
Day
same day
Difference
+5 hours
Source (UTC-5)
Daytime
Target (UTC+0)
Daytime
Analog clock faces showing both time zones
Working hours overlap between the two time zones (9 AM - 5 PM)
Source (UTC-5)
Target (UTC+0)
3 hours of overlap
Overlap window: 9:00 - 12:00 (source time)
Time zones were established in the late 19th century to standardize timekeeping as railroads and telecommunications connected the world. Today, coordinating across time zones is essential for international business, remote work, travel planning, and scheduling calls with people around the globe.
There are 24 primary time zones, each roughly 15 degrees of longitude wide. However, some countries and regions use half-hour or quarter-hour offsets (like India at UTC+5:30 and Nepal at UTC+5:45), bringing the total to about 38 distinct time zones worldwide.
UTC (Coordinated Universal Time) is the global time standard from which all time zones are measured. It replaced GMT as the reference standard. UTC+0 is the time at the Prime Meridian in Greenwich, England. Time zones east of Greenwich are ahead (UTC+), and those west are behind (UTC-).
This converter uses standard UTC offsets and does not automatically adjust for daylight saving time (DST). During DST, many regions shift one hour ahead — for example, US Eastern goes from UTC-5 to UTC-4. Adjust the offset manually if DST is in effect.
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