How many hours is IST ahead of WET?
As abbreviations, WET is always 5.5 hours behind of IST: IST is UTC+5:30 and WET is UTC+0. To convert, subtract 5.5 hours.
Check which label you actually need: WET (Western European Time is on WEST today). A time written with an abbreviation that is not in use is usually meant as the local time, so convert between the places instead: right now WET is 4.5 hours behind of IST.
When the IST to WET time difference changes
For most of the year WET is 4.5 hours behind of IST. From 25 October to 31 December 2026, WET is 5.5 hours behind of IST instead, because the two places change their clocks on different dates. Meetings booked by the usual gap land an hour off in those weeks.
| Dates | WET vs IST | Length |
|---|---|---|
| 29 March 2026 to 24 October 2026 | 4.5 hours behind | 210 days |
| 25 October 2026 to 31 December 2026 | 5.5 hours behind | 68 days |
| 1 January 2027 to 27 March 2027 | 5.5 hours behind | 86 days |
| 28 March 2027 to 30 October 2027 | 4.5 hours behind | 217 days |
| 31 October 2027 to 31 December 2027 | 5.5 hours behind | 62 days |
When IST and WET are both at work
- When WET is 4.5 hours behind of IST: 3 shared office hours, 14:00 to 17:00 in IST (09:30 to 12:30 in WET).
- When WET is 5.5 hours behind of IST: 2 shared office hours, 15:00 to 17:00 in IST (09:30 to 11:30 in WET).