Time Zone Converter

A time zone converter calculates the local time in one location given another, using UTC offsets. UTC is the global reference; all time zones are offset from it

The calculator uses the standard published formula for time zone. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.

This calculator works with inches. You can enter values in the units shown — the calculator handles all conversions internally.

The core formula is: UTC time = Source local − Source UTC offset. Each step in the calculation is shown so you can verify the result manually.