IST to WAT Converter
WAT is 4 hours and 30 minutes behind IST
IST to WAT Conversion Table
Green rows indicate standard business hours (9 AM – 5 PM) in WAT
| IST | WAT |
|---|---|
| 12:00 AM | 7:30 PM -1d |
| 1:00 AM | 8:30 PM -1d |
| 2:00 AM | 9:30 PM -1d |
| 3:00 AM | 10:30 PM -1d |
| 4:00 AM | 11:30 PM -1d |
| 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 |
| 10:00 AM | 5:30 AM |
| 11:00 AM | 6:30 AM |
| 12:00 PM | 7:30 AM |
| 1:00 PM | 8:30 AM |
| 2:00 PM | 9:30 AM |
| 3:00 PM | 10:30 AM |
| 4:00 PM | 11:30 AM |
| 5:00 PM | 12:30 PM |
| 6:00 PM | 1:30 PM |
| 7:00 PM | 2:30 PM |
| 8:00 PM | 3:30 PM |
| 9:00 PM | 4:30 PM |
| 10:00 PM | 5:30 PM |
| 11:00 PM | 6:30 PM |
Converting India Standard Time to West Africa Time
India Standard Time (IST) and West Africa Time (WAT) are separated by a 4 hours and 30 minutes time difference. WAT is 4 hours and 30 minutes behind IST. IST is UTC+5:30, used in India, Sri Lanka, while WAT is UTC+1, used in Nigeria, Cameroon, Niger.
When converting from IST to WAT, the key reference points to remember are: 9:00 AM IST equals 4:30 AM WAT, 12:00 PM noon IST equals 7:30 AM WAT, and 5:00 PM IST equals 12:30 PM WAT. The conversion table above shows every hour of the day mapped between these two time zones.
Scheduling Across IST and WAT
For professionals scheduling meetings between IST and WAT, finding overlapping business hours is essential. Standard business hours are typically 9:00 AM to 5:00 PM in each time zone. Given the 4 hours and 30 minutes difference, the window of overlap may be limited. Use the highlighted working hours in the conversion table above to quickly identify suitable meeting times.
Daylight Saving Time Considerations
IST does not observe Daylight Saving Time, maintaining UTC+5:30 year-round. WAT does not observe DST, staying at UTC+1 year-round.