Whiskey Time Zone — W
Military letter W (Whiskey) maps to the UTC-10 offset from Coordinated Universal Time. Covers Hawaii and parts of French Polynesia.
Whiskey (W) — UTC-10
Thursday, 22 October 2026 GMT-10
About Whiskey
UTC offset
UTC-10
Letter W = Whiskey in the NATO phonetic alphabet.
Where W is used
Covers Hawaii and parts of French Polynesia.
Places on UTC-10 (W time) in 2026
4 zones in the tz database are at UTC-10 for at least part of 2026. Zones listed under January or July only are on this offset for part of the year, because they change their clocks for daylight saving time. Civil abbreviations at this offset: HST.
All year (3 zones)
Cook Islands, French Polynesia, United States
Pacific/Honolulu · Pacific/Rarotonga · Pacific/Tahiti
In January only (1 zones)
United States
Converting W time
In a military date-time group the zone letter follows the time: 151430W JAN 26 means 14:30 Whiskey time on 15 January 2026, which is 160030Z JAN 26 in Zulu (UTC).
| Zone | Offset | When it's 12:00 W |
|---|---|---|
| U Uniform | UTC-8 | 14:00 |
| S Sierra | UTC-6 | 16:00 |
| R Romeo | UTC-5 | 17:00 |
| Z Zulu | UTC | 22:00 |
| A Alpha | UTC+1 | 23:00 |
| B Bravo | UTC+2 | 00:00 (+1 day) |
| C Charlie | UTC+3 | 01:00 (+1 day) |
| E Echo | UTC+5 | 03:00 (+1 day) |
| H Hotel | UTC+8 | 06:00 (+1 day) |
| I India | UTC+9 | 07:00 (+1 day) |
| K Kilo | UTC+10 | 08:00 (+1 day) |