Time & Dates

What Is a UTC Offset?

A UTC offset is the difference in hours and minutes between a location's local time and Coordinated Universal Time (UTC). It is written as UTC+ or UTC− followed by the difference, for example UTC−4 for New York in summer or UTC+5:30 for India. Local time = UTC + offset.

Offsets Change With DST

A region that observes daylight saving time has two offsets during the year, one for standard time and one for summer time.

ISO Notation

In ISO 8601 timestamps, the offset is appended to the time, as in 2026-06-01T14:00+05:30.

🧮 Calculate It Yourself

Put UTC Offset into practice with these free calculators — no sign-up, nothing stored.

🔗 Related Terms

More Time & Dates Terms

📖 Browse all glossary terms or explore all free calculators.

Last updated: September 27, 2026. This definition is for general educational purposes only. It is not financial, investment, tax, legal, or medical advice, and it does not recommend any product or course of action. For decisions about your own situation, consult a qualified professional.