IST to WET Time Converter
WET is 4 hours and 30 minutes behind IST. IST is UTC+5:30, and Portugal and the Canary Islands are currently on WEST (UTC+1:00).
Best Time to Call Between IST and WET
Both zones are inside normal business hours between 2:00 PM and 5:00 PM IST — that's 9:30 AM to 12:30 PM WET. That's a 3-hour window.
both at work IST only WET only neither — hours along the strip are IST.
Common Times Converted
IST on the left, WET on the right.
IST to WET: Full 24-Hour Conversion Table
Shaded rows are working hours; the darker shade marks the hours when both zones are at work.
| IST | WET | Working hours |
|---|---|---|
| 12:00 AM | 7:30 PM prev day | — |
| 1:00 AM | 8:30 PM prev day | — |
| 2:00 AM | 9:30 PM prev day | — |
| 3:00 AM | 10:30 PM prev day | — |
| 4:00 AM | 11:30 PM prev day | — |
| 5:00 AM | 12:30 AM | — |
| 6:00 AM | 1:30 AM | — |
| 7:00 AM | 2:30 AM | — |
| 8:00 AM | 3:30 AM | — |
| 9:00 AM | 4:30 AM | IST only |
| 10:00 AM | 5:30 AM | IST only |
| 11:00 AM | 6:30 AM | IST only |
| 12:00 PM | 7:30 AM | IST only |
| 1:00 PM | 8:30 AM | IST only |
| 2:00 PM | 9:30 AM | Both zones |
| 3:00 PM | 10:30 AM | Both zones |
| 4:00 PM | 11:30 AM | Both zones |
| 5:00 PM | 12:30 PM | WET only |
| 6:00 PM | 1:30 PM | WET only |
| 7:00 PM | 2:30 PM | WET only |
| 8:00 PM | 3:30 PM | WET only |
| 9:00 PM | 4:30 PM | WET only |
| 10:00 PM | 5:30 PM | — |
| 11:00 PM | 6:30 PM | — |
What IST and WET Actually Are
IST — India Standard Time
Mumbai, Delhi, Bengaluru, Chennai, Kolkata, Hyderabad — and Colombo. Standing at UTC+5:30 as written, and the region does not change its clocks, so that offset holds all year. IST also stands for Irish Standard Time (UTC+1) and Israel Standard Time (UTC+2). This page covers the Indian one, which is by far the most searched.
India runs a single time zone across a country wide enough for two, which is why sunrise in the north-east can come nearly two hours before Mumbai's. Proposals for a second zone resurface regularly and have never been adopted.
WET — Western European Time
Lisbon, Porto, the Canary Islands. Standing at UTC as written, and the region does change its clocks, so its live offset moves by an hour twice a year. The next change is on Sunday, October 25, 2026, to WET.
Portugal moved to Central European Time in 1992 and switched back four years later, after finding that later sunrises hurt more than later sunsets helped.
What This Means in Practice
Expect times on the half hour
IST sits on a 30-minute offset rather than a whole hour, so a round number on one side is never a round number on the other. A 9:00 meeting becomes 30 minutes past the hour, which is exactly the detail calendar invitations get wrong when someone converts in their head.
This gap is not fixed
WET changes its clocks and IST does not, so the difference between them moves by an hour twice a year. A recurring meeting set now will drift for one side from Sunday, October 25, 2026 unless someone resets it.
Major Cities in Each Zone
Cities on IST
Cities on WET
Frequently Asked Questions
What is the time difference between IST and WET?
WET is 4 hours and 30 minutes behind IST. That is the live figure. Taken strictly as written, the gap between IST and WET is 5 hours and 30 minutes — the two differ because at least one of these regions is currently on daylight saving.
What is 9:00 AM IST in WET?
9:00 AM IST is 4:30 AM WET.
What are the best hours to schedule a call between IST and WET?
Between 2:00 PM and 5:00 PM IST, which is 9:30 AM to 12:30 PM WET. Both sides are inside normal business hours through that window.
Does the difference between IST and WET change during the year?
Yes. WET observes daylight saving and IST does not, so the gap shifts by an hour at least twice a year. The next clock change is on Sunday, October 25, 2026.
Does IST always mean India Standard Time?
IST also stands for Irish Standard Time (UTC+1) and Israel Standard Time (UTC+2). This page covers the Indian one, which is by far the most searched.