Timezone Offset Calculator
Convert times between UTC offsets without IANA lookup.
Convert a time to another timezone instantly. Free manual offset timezone converter (UTC±X).
Calculator Inputs
About Offset Convert
Convert times between UTC offsets without IANA lookup.
Simple numeric-offset conversion (e.g. +5.5 IST, -5 EST).
Where it is used
Meetings across zones, travel.
How to use the Offset Convert
- Local Time (HH:MM) — enter the value (e.g. 14:30).
- From UTC Offset (e.g. 5.5 for IST) — enter the value (e.g. 5.5).
- To UTC Offset (e.g. -5) — enter the value (e.g. -5).
- Calculate — press the Calculate button to see the result instantly above.
Formula
local + toOffset - fromOffset, mod 24h.
Examples
IST to EST
time:14:30
fromOffset:5.5
toOffset:-5
Result: 14:30 IST → 04:00 EST
Frequently Asked Questions
- DST?
- Offsets must include DST manually (e.g. EDT -4, EST -5).