The military / NATO time zones assign a letter to each UTC offset. Z (Zulu) is UTC itself. Letters A–M go east (+1 to +12, skipping J), and N–Y go west (−1 to −12).
| Letter | Offset | Name |
|---|---|---|
| Z | UTC ±0 | Zulu (UTC/GMT) |
| A | UTC +1 | Alpha |
| B | UTC +2 | Bravo |
| C | UTC +3 | Charlie |
| E | UTC +5 | Echo |
| I | UTC +9 | India |
| K | UTC +10 | Kilo |
| M | UTC +12 | Mike |
| N | UTC −1 | November |
| R | UTC −5 | Romeo |
| T | UTC −7 | Tango |
| U | UTC −8 | Uniform |
| Y | UTC −12 | Yankee |