Time Zone Converter

Convert time between any world time zones with full DST support.

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How Time Zone Conversion Works

UTC time = Input time − UTC offset of source timezone

Converted time = UTC time + UTC offset of target timezone

  • DST adjustments are applied automatically based on the entered date.
  • Pakistan (Asia/Karachi) is UTC+5 and does not observe DST.
  • Some offsets are fractional: India UTC+5:30, Nepal UTC+5:45, Iran UTC+3:30.

Frequently Asked Questions

What is UTC?
UTC (Coordinated Universal Time) is the primary time standard by which the world regulates clocks. It never changes for DST and is the basis for all other offsets.
Does Pakistan observe Daylight Saving Time?
No. Pakistan uses UTC+5 (PKT — Pakistan Standard Time) year-round. Pakistan discontinued DST in 2009.
What is the difference between GMT and UTC?
GMT and UTC are practically identical for everyday use. UTC is the modern scientific standard maintained by atomic clocks.
How does DST affect time zone conversions?
During DST, clocks move forward 1 hour. For example, New York shifts from EST (UTC−5) to EDT (UTC−4) in summer. This converter applies the correct offset automatically.
Why are some UTC offsets not whole hours?
Some countries use fractional offsets: India UTC+5:30, Nepal UTC+5:45, Iran UTC+3:30.