WET to IST Converter & Meeting Planner
Quick answer: 9:00 AM WET = 2:30 PM IST (fixed +00:00 standard offset — not DST-adjusted). Use the interactive converter below for DST-aware local-time scheduling.
Planning a call or meeting between Western European Time (WET) and Indian Standard Time (IST)? You need to account for the standard time difference. Indian Standard Time is normally 5.5 hours ahead of Western European Time. Whether you are coordinating between teams in Lisbon and Las Palmas and Mumbai and New Delhi, our live tool has you covered. Use our interactive overlap studio below to find the perfect waking hours for both regions, taking into account any seasonal Daylight Saving Time (DST) changes.
24-Hour Conversion Table
Quick reference: 12:00 AM WET = 5:30 AM IST. The full 24-hour WET to IST table below uses fixed standard offsets for exact abbreviation searches.
Example: 3:00 PM WET = 8:30 PM IST.
| WET Time | IST Time |
|---|---|
| 12:00 AM (00:00) | 5:30 AM (05:30) |
| 1:00 AM (01:00) | 6:30 AM (06:30) |
| 2:00 AM (02:00) | 7:30 AM (07:30) |
| 3:00 AM (03:00) | 8:30 AM (08:30) |
| 4:00 AM (04:00) | 9:30 AM (09:30) |
| 5:00 AM (05:00) | 10:30 AM (10:30) |
| 6:00 AM (06:00) | 11:30 AM (11:30) |
| 7:00 AM (07:00) | 12:30 PM (12:30) |
| 8:00 AM (08:00) | 1:30 PM (13:30) |
| 9:00 AM (09:00) | 2:30 PM (14:30) |
| 10:00 AM (10:00) | 3:30 PM (15:30) |
| 11:00 AM (11:00) | 4:30 PM (16:30) |
| 12:00 PM (12:00) | 5:30 PM (17:30) |
| 1:00 PM (13:00) | 6:30 PM (18:30) |
| 2:00 PM (14:00) | 7:30 PM (19:30) |
| 3:00 PM (15:00) | 8:30 PM (20:30) |
| 4:00 PM (16:00) | 9:30 PM (21:30) |
| 5:00 PM (17:00) | 10:30 PM (22:30) |
| 6:00 PM (18:00) | 11:30 PM (23:30) |
| 7:00 PM (19:00) | 12:30 AM (00:30)+1 day |
| 8:00 PM (20:00) | 1:30 AM (01:30)+1 day |
| 9:00 PM (21:00) | 2:30 AM (02:30)+1 day |
| 10:00 PM (22:00) | 3:30 AM (03:30)+1 day |
| 11:00 PM (23:00) | 4:30 AM (04:30)+1 day |
Best time to call Mumbai from Lisbon
For most work calls, compare the normal business day in Lisbon (WET) with the business day in Mumbai (IST). WET commonly covers Western Europe, Macaronesia, while IST is mainly associated with South Asia.
⚠️ Note: 2026-07-05 is not a normal workday in one or both regions based on their configured calendar. The overlap below should be treated as a reference, not a guaranteed office-hours window.
✅ The most practical overlap on 2026-07-05 is usually 9:00 AM - 2:00 PM WET, which corresponds to 1:30 PM - 6:30 PM IST. This window sits inside the typical WET workday (9:00 AM - 6:00 PM) and the IST workday (9:30 AM - 6:30 PM).
- DST Safety: WET or IST may shift during Daylight Saving Time. Always confirm the converted time for your specific date.
- Bombay Stock Exchange (BSE): 09:15-15:30 local time in Mumbai.
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Frequently Asked Questions
What is the time difference between WET and IST?
During standard time, Indian Standard Time is 5.5 hours ahead of Western European Time.
Is WET the same as GMT?
WET and GMT share the exact same UTC+0 standard offset, and both shift forward by one hour during summer under identical DST schedules, making them numerically interchangeable for any clock or calendar calculation. However, WET is the formal legal time zone designation used by Portugal, the Faroe Islands, and Spain's Canary Islands, while GMT is a historically-grounded designation tied specifically to the United Kingdom and its meridian at Greenwich.
Does Spain use Western European Time?
Mainland Spain operates on Central European Time (CET) at UTC+1, meaning cities like Madrid and Barcelona run one hour ahead of WET throughout the entire year. The Canary Islands are the exception: as a Spanish autonomous community, they officially observe WET, placing Las Palmas and Santa Cruz de Tenerife a full hour behind the Spanish mainland at all times.
Does India observe Daylight Saving Time (DST)?
India does not observe Daylight Saving Time and has not done so since 1945. IST remains fixed at UTC+5:30 every day of the year, meaning the offset between India and any DST-observing country shifts by one hour twice annually when those countries change their clocks.
Why does IST have a 30-minute offset?
India chose the 82.5° East meridian — which passes through Mirzapur in Uttar Pradesh — as its central reference longitude, as it bisects the subcontinent geographically. That meridian sits exactly 5 hours and 30 minutes ahead of the Prime Meridian in Greenwich, producing the UTC+5:30 offset that has defined IST since 1906.