Time Zone Calculator — Convert Between Time Zones

Time Zone Calculator

Convert times between different time zones worldwide. Calculate time differences, plan meetings across time zones, and compare current times globally.

Step 1: Time Zones & Time

Time Zone Information

Time zones are regions that observe a uniform standard time. Most time zones are offset from UTC (Coordinated Universal Time). Daylight Saving Time (DST) may affect times in certain regions.

Step 2: Display Options

Time Zone Abbreviations

EST: Eastern Standard Time (UTC-5)
CST: Central Standard Time (UTC-6)
PST: Pacific Standard Time (UTC-8)
CET: Central European Time (UTC+1)
IST: India Standard Time (UTC+5:30)

Time Zone Conversion Results

Time Conversion
World Clock
Time Zone Info

Converted Time

9:00 AM
EST → PST (3 hours behind)
Original Time
12:00 PM EST
Monday, Jan 15, 2024
Converted Time
9:00 AM PST
Monday, Jan 15, 2024
Time Difference
3 hours behind
Business Hours
8 AM – 5 PM overlap

World Clock Comparison

City Time Zone Current Time Offset from UTC DST Status

Time Zone Information

Coordinated Universal Time (UTC)

UTC is the primary time standard by which the world regulates clocks and time. It is within about 1 second of mean solar time at 0° longitude.

Time Zone Offsets

Time zones are expressed as offsets from UTC, ranging from UTC-12:00 to UTC+14:00. The offset indicates how many hours the time zone is ahead or behind UTC.

Daylight Saving Time (DST)

DST is the practice of advancing clocks during warmer months so that darkness falls later each day. Not all countries observe DST, and start/end dates vary.

International Date Line

The International Date Line is an imaginary line that runs from the North Pole to the South Pole. When you cross it, the date changes by one day.

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