Time Zone Calculator

Convert times between any time zones, find meeting times across cities, see world clocks, and calculate time differences instantly.

!
⇌
Time Zone Converter

Enter a date and time in the source timezone and convert it to multiple target timezones simultaneously.

🌏
World Clock

Live current time across major world cities. Updates every second.

!
↔
Time Difference Calculator

Calculate the exact hour difference between two time zones and see if DST applies.

📅
Meeting Planner

Find the best time to schedule a meeting across multiple timezones. Green = business hours, Yellow = early/late, Red = night.

?
Time Zone Guide
What is UTC?
UTC (Coordinated Universal Time) is the world's primary time standard. All time zones are expressed as UTC offsets — e.g., UTC+5:30 (India), UTC-5 (US Eastern). UTC does not change with Daylight Saving Time.
Daylight Saving Time (DST)
US: Clocks spring forward 1 hour on the 2nd Sunday of March, fall back on 1st Sunday of November.
EU: Last Sunday of March (forward) and last Sunday of October (back).
No DST: India, China, Japan, most of Africa and Southeast Asia.
Major Time Zone Offsets
UTC-8 — Los Angeles (PST/PDT)
UTC-5 — New York (EST/EDT)
UTC+0 — London (GMT/BST)
UTC+1 — Paris, Berlin (CET/CEST)
UTC+3 — Moscow, Dubai
UTC+5:30 — Mumbai, New Delhi
UTC+8 — Beijing, Singapore, Hong Kong
UTC+9 — Tokyo, Seoul
UTC+10 — Sydney (AEST/AEDT)
UTC+12 — Auckland, Fiji
Half-Hour & 45-Minute Offsets
Not all time zones are whole hours from UTC. Notable exceptions:
UTC+5:30 — India (IST)
UTC+5:45 — Nepal (NPT)
UTC+6:30 — Myanmar (MMT)
UTC+9:30 — Adelaide, Darwin (ACST)
UTC+12:45 — Chatham Islands (NZ)