🌍 Time Zone Converter

Convert time between different time zones (UTC offsets).

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What is a Time Zone Converter?

A time zone converter takes a clock time in one location's UTC offset and translates it to the equivalent local time in another. It's essential for scheduling calls between an Indian office on IST (UTC+5:30) and clients in New York (UTC-5), London (UTC+0), or Singapore (UTC+8); for remote teams coordinating stand-up meetings across continents; and for travellers figuring out what time it is back home before calling family. India uses a single, unusual half-hour offset — UTC+5:30 — rather than a whole-hour offset like most countries, which is exactly why time zone maths involving India often trips people up.

Conversion Formula

The converter takes the time difference between the two UTC offsets and adds it to your input time, wrapping around midnight if needed:

Converted time = input time + (To-offset − From-offset), wrapped to a 24-hour clock

Common UTC Offsets

RegionUTC Offset
India (IST)UTC+5:30
United Kingdom (GMT)UTC+0
US EasternUTC−5
Dubai (UAE)UTC+4
SingaporeUTC+8
Japan (JST)UTC+9
NepalUTC+5:45

Worked Example

If it's 10:00 in India (UTC+5:30) and you want the equivalent time in New York (UTC−5), the offset difference is −5 − 5.5 = −10.5 hours:

10:00 − 10:30 = 23:30 (previous day)

So a 10 AM meeting in Mumbai lands at 11:30 PM the previous night in New York — a useful check before scheduling a call across that gap.

How to Use This Calculator

  1. Enter the time you want to convert.
  2. Select the UTC offset you're converting from.
  3. Select the UTC offset you're converting to.
  4. Click Calculate to see the equivalent local time.
💡 Tip: This tool converts based on fixed UTC offsets and does not automatically adjust for Daylight Saving Time in countries that observe it (like the US or UK). During their DST months, manually add an hour to the destination offset before converting, since India does not observe DST.

For date-based scheduling once you've nailed the time, the Date Difference Calculator and Time Converter are useful companions.

📅 Last reviewed: July 2026 · Formulas verified against RBI/SEBI/IT Dept guidelines.