UTC, GMT, IST, EST, PST: Timezone Abbreviations Explained
Aug 4, 2026 0 views
Common Timezone Abbreviations
| Abbreviation | Full Name | UTC Offset | Region |
|---|---|---|---|
| UTC | Coordinated Universal Time | ±0:00 | Global standard |
| GMT | Greenwich Mean Time | ±0:00 | UK, Portugal, Iceland (winter) |
| IST | India Standard Time | +5:30 | India, Sri Lanka |
| EST | Eastern Standard Time | -5:00 | US East Coast (winter) |
| EDT | Eastern Daylight Time | -4:00 | US East Coast (summer) |
| PST | Pacific Standard Time | -8:00 | US West Coast (winter) |
| CST | Central Standard Time | -6:00 | Central US, China Standard Time (+8:00!) |
| CET | Central European Time | +1:00 | France, Germany, Italy, Spain (winter) |
| JST | Japan Standard Time | +9:00 | Japan |
| AEST | Australian Eastern Standard Time | +10:00 | Sydney, Melbourne, Brisbane |
| SGT | Singapore Time | +8:00 | Singapore, Malaysia, Philippines |
⚠️ Warning: Abbreviations Are Ambiguous
CST can mean Central Standard Time (UTC-6, US) OR China Standard Time (UTC+8). IST can mean India Standard Time OR Israel Standard Time. Always use IANA timezone names like "America/Chicago" or "Asia/Kolkata" for programming.
#UTC#GMT#IST#EST#PST#abbreviations#timezone basics
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