🌍 Time Zone Reference
UTC offsets and DST (Daylight Saving Time) rules for major world time zones. Standard offsets apply during winter; DST offsets apply during summer in each region.
DST dates vary by country and year. Always verify with official sources for scheduling. Use the Time Zone Converter for live conversions.
United States Time Zones
| Time Zone | Abbr. | Standard (Winter) | DST (Summer) |
|---|---|---|---|
| Eastern Time (ET) | EST/EDT | UTC−5 | UTC−4 |
| Central Time (CT) | CST/CDT | UTC−6 | UTC−5 |
| Mountain Time (MT) | MST/MDT | UTC−7 | UTC−6 |
| Pacific Time (PT) | PST/PDT | UTC−8 | UTC−7 |
| Alaska Time (AKT) | AKST/AKDT | UTC−9 | UTC−8 |
| Hawaii Time (HT) | HST | UTC−10 | — |
| Arizona (no DST) | MST | UTC−7 | UTC−7 |
World Time Zones
| Location | Standard | DST |
|---|---|---|
| London (UK) | UTC+0 | UTC+1 |
| Paris / Berlin (CET) | UTC+1 | UTC+2 |
| Moscow (MSK) | UTC+3 | UTC+3 |
| Dubai (UAE) | UTC+4 | UTC+4 |
| India (IST) | UTC+5:30 | UTC+5:30 |
| China / Singapore | UTC+8 | UTC+8 |
| Japan (JST) | UTC+9 | UTC+9 |
| Sydney, Australia | UTC+10 | UTC+11 |
| Auckland, NZ | UTC+12 | UTC+13 |
| São Paulo (BRT) | UTC−3 | UTC−2 |
| Buenos Aires (ART) | UTC−3 | UTC−3 |
| Mexico City (CST) | UTC−6 | UTC−5 |
| Toronto / New York | UTC−5 | UTC−4 |
| Los Angeles | UTC−8 | UTC−7 |