| PST |
MST PDT |
CST MDT |
EST CDT |
EDT | GUY |
UT GMT |
CET BST SEČ |
EET CEST SELČ |
MDV | MLV | CHN | JST |
| -16 | -17 | -18 | -19 | -20 | -21 | 00 | 01 | 02 | 03 | 04 | 08 | 09 |
| -17 | -18 | -19 | -20 | -21 | -22 | 01 | 02 | 03 | 04 | 05 | 09 | 10 |
| -18 | -19 | -20 | -21 | -22 | -23 | 02 | 03 | 04 | 05 | 06 | 10 | 11 |
| -19 | -20 | -21 | -22 | -23 | 00 | 03 | 04 | 05 | 06 | 07 | 11 | 12 |
| -20 | -21 | -22 | -23 | 00 | 01 | 04 | 05 | 06 | 07 | 08 | 12 | 13 |
| -21 | -22 | -23 | 00 | 01 | 02 | 05 | 06 | 07 | 08 | 09 | 13 | 14 |
| -22 | -23 | 00 | 01 | 02 | 03 | 06 | 07 | 08 | 09 | 10 | 14 | 15 |
| -23 | 00 | 01 | 02 | 03 | 04 | 07 | 08 | 09 | 10 | 11 | 15 | 16 |
| 00 | 01 | 02 | 03 | 04 | 05 | 08 | 09 | 10 | 11 | 12 | 16 | 17 |
| 01 | 02 | 03 | 04 | 05 | 06 | 09 | 10 | 11 | 12 | 13 | 17 | 18 |
| 02 | 03 | 04 | 05 | 06 | 07 | 10 | 11 | 12 | 13 | 14 | 18 | 19 |
| 03 | 04 | 05 | 06 | 07 | 08 | 11 | 12 | 13 | 14 | 15 | 19 | 20 |
| 04 | 05 | 06 | 07 | 08 | 09 | 12 | 13 | 14 | 15 | 16 | 20 | 21 |
| 05 | 06 | 07 | 08 | 09 | 10 | 13 | 14 | 15 | 16 | 17 | 21 | 22 |
| 06 | 07 | 08 | 09 | 10 | 11 | 14 | 15 | 16 | 17 | 18 | 22 | 23 |
| 07 | 08 | 09 | 10 | 11 | 12 | 15 | 16 | 17 | 18 | 19 | 23 | 24 |
| 08 | 09 | 10 | 11 | 12 | 13 | 16 | 17 | 18 | 19 | 20 | 24 | +01 |
| 09 | 10 | 11 | 12 | 13 | 14 | 17 | 18 | 19 | 20 | 21 | +01 | +02 |
| 10 | 11 | 12 | 13 | 14 | 15 | 18 | 19 | 20 | 21 | 22 | +02 | +03 |
| 11 | 12 | 13 | 14 | 15 | 16 | 19 | 20 | 21 | 22 | 23 | +03 | +04 |
| 12 | 13 | 14 | 15 | 16 | 17 | 20 | 21 | 22 | 23 | 24 | +04 | +05 |
| 13 | 14 | 15 | 16 | 17 | 18 | 21 | 22 | 23 | 24 | +01 | +05 | +06 |
| 14 | 15 | 16 | 17 | 18 | 19 | 22 | 23 | 24 | +01 | +02 | +06 | +07 |
| 15 | 16 | 17 | 18 | 19 | 20 | 23 | 24 | +01 | +02 | +03 | +07 | +08 |
Tato tabulka obsahuje vybraná časová pásma, zejména taková, která se nějakým způsobem váží ke kosmonautice. Znaménko mínus (-) znamená, že časový údaj se vztahuje k předchozímu dni (včerejšímu), znaménko plus (+) znamená, že časový údaj se vztahuje k následujícímu dni (zítřku) v příslušné časové zóně).
This Table contains selected time zones, especially those connected with astronautics. Sign "minus" (-) denotes, that the time given belongs to the preceding day (yesterday) in particular timezone, sign "plus" (+) denotes, that the time given belongs to t the following day (tomorrow) in particular time zone compared with Greenwich date.
| Time zone | Time difference to UTC |
Central meridian | |
|---|---|---|---|
| Code | Name | ||
| PST | Pacific Standard Time | UTC-8 | 120°W |
| MST | Mountain Standard Time | UTC-7 | 105°W |
| PDT | Pacific Daylight (Saving) Time | UTC-7 | 120°W |
| CST | Central Standard Time | UTC-6 | 90°W |
| MDT | Mountain Daylight (Saving) Time | UTC-6 | 105°W |
| EST | Eastern Standard Time | UTC-5 | 75°W |
| CDT | Central Daylight (Saving) Time | UTC-5 | 90°W |
| EDT | Eastern Daylight (Saving) Time | UTC-4 | 75°W |
| GUY | French Guayana | UTC-3 | 45°W |
| UTC | Universal Time Coordinated | UTC+0 | 0°E |
| GMT | Greenwich Mean Time | UTC+0 | 0°E |
| Z | Zulu Time | UTC+0 | 0°E |
| CET | Central European Time | UTC+1 | 15°E |
| SEČ | Středoevropský čas | UTC+1 | 15°E |
| BST | British Summer Time | UTC+1 | 0°E |
| CEST | Central European Summer Time | UTC+2 | 15°E |
| SELČ | Středoevropský letní čas | UTC+2 | 15°E |
| EET | Eastern European Time | UTC+2 | 30°E |
| VEČ | Východoevropský čas | UTC+2 | 30°E |
| MV | Moskovskoe vremya | UTC+3 | 45°E |
| MDV | Moskovskoe dekretnoe vremya | UTC+3 | 45°E |
| MLV | Moskovskoe letnee vremya | UTC+4 | 45°E |
| IST | Indian Standard Time | UTC+5:30 | 82.5°E |
| CHN | Beijing Standard Time | UTC+8 | 120°E |
| JST | Japan Standard Time | UTC+9 | 135°E |
Letní čas v USA začínal první neděli v dubnu v 02:00 ráno místního času a končil poslední neděli v říjnu v 02:00 ráno místního času. Od roku 2007 letní čas začíná druhou neděli v březnu v 02:00 ráno místního času a končí první neděli v listopadu v 02:00 ráno místního času.
Daylight Saving Time (DST) begins in U.S.A. on the first Sunday in April at 2 a.m., and it ends on the last Sunday in October at 2 a.m. local time. Beginning with the year 2007, the DST begins on the second Sunday in March at 2 a.m., and it ends on the first Sunday in November at 2 a.m. local time.
| Rok/Year | Posun hodin dopředu/Spring Forward | Posun hodin zpět/Fall Back |
|---|---|---|
| 2004 | 2 a.m. April 4 | 2 a.m. Oct. 31 |
| 2005 | 2 a.m. April 3 | 2 a.m. Oct. 30 |
| 2006 | 2 a.m. April 2 | 2 a.m. Oct. 29 |
| 2007 | 2 a.m. March 11 | 2 a.m. Nov. 4 |
| 2008 | 2 a.m. March 9 | 2 a.m. Nov. 2 |
| 2009 | 2 a.m. March 8 | 2 a.m. Nov. 1 |
| 2010 | 2 a.m. March 14 | 2 a.m. Nov. 7 |
| 2011 | 2 a.m. March 13 | 2 a.m. Nov. 6 |
| 2012 | 2 a.m. March 11 | 2 a.m. Nov. 4 |
| 2013 | 2 a.m. March 10 | 2 a.m. Nov. 3 |
| 2014 | 2 a.m. March 9 | 2 a.m. Nov. 2 |
| 2015 | 2 a.m. March 8 | 2 a.m. Nov. 1 |
| 2016 | 2 a.m. March 13 | 2 a.m. Nov. 6 |
| 2017 | 2 a.m. March 12 | 2 a.m. Nov. 5 |
| 2018 | 2 a.m. March 11 | 2 a.m. Nov. 4 |
| 2019 | 2 a.m. March 10 | 2 a.m. Nov. 3 |
| 2020 | 2 a.m. March 8 | 2 a.m. Nov. 1 |
| 2021 | 2 a.m. March 14 | 2 a.m. Nov. 7 |
| 2022 | 2 a.m. March 13 | 2 a.m. Nov. 6 |
| 2023 | 2 a.m. March 12 | 2 a.m. Nov. 5 |
| 2024 | 2 a.m. March 10 | 2 a.m. Nov. 3 |
| 2025 | 2 a.m. March 9 | 2 a.m. Nov. 2 |