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Convert British Summer Time (BST) to Iran Daylight Time (IRDT, UTC+4.5) for regional business calls. Free converter with real-time conversion, meeting time planner, and business hours comparison for BST to IRDT coordination. Includes 24-hour conversion table and live time displays. Perfect for international scheduling and global team collaboration. Works on all devices with accurate, reliable results.
Iran Daylight Time is 3 hours and 30 minutes ahead of British Summer Time
British Summer Time to Iran Daylight Time full day schedule
| 🇬🇧 British Summer Time | 🇮🇷 Iran Daylight Time |
|---|---|
|
12:00 AM
|
3:30 AM
|
|
1:00 AM
|
4:30 AM
|
|
2:00 AM
|
5:30 AM
|
|
3:00 AM
|
6:30 AM
|
|
4:00 AM
|
7:30 AM
|
|
5:00 AM
|
8:30 AM
|
|
6:00 AM
|
9:30 AM
|
|
7:00 AM
|
10:30 AM
|
|
8:00 AM
|
11:30 AM
|
|
9:00 AM
|
12:30 PM
|
|
10:00 AM
|
1:30 PM
|
|
11:00 AM
|
2:30 PM
|
|
12:00 PM
|
3:30 PM
|
|
1:00 PM
|
4:30 PM
|
|
2:00 PM
|
5:30 PM
|
|
3:00 PM
|
6:30 PM
|
|
4:00 PM
|
7:30 PM
|
|
5:00 PM
|
8:30 PM
|
|
6:00 PM
|
9:30 PM
|
|
7:00 PM
|
10:30 PM
|
|
8:00 PM
|
11:30 PM
|
|
9:00 PM
|
12:30 AM
(next day)
|
|
10:00 PM
|
1:30 AM
(next day)
|
|
11:00 PM
|
2:30 AM
(next day)
|
Best times for BST ↔ IRDT meetings and calls
Based on standard business hours (9:00 AM - 6:00 PM) in each time zone
Detailed timezone specifications and regional data
Source timezone
Target timezone