Convert Casey Time to Iran Time
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CAST · UTC+8 → IRST · UTC+3:30
CAST is 4 hours 30 minutes ahead of IRST
Casey · AWST
Wednesday, 7 October 2026
Tehran · UTC+3:30
Wednesday, 7 October 2026
When are both sides at work?Each column is one hour of the day in the first city; the second row shows the same moment in the other city. Gold means office hours (09:00–18:00), dusk means awake but off work, night means asleep (23:00–07:00). Columns where both rows are gold are good meeting times.
Shared working hours: 13:30–18:00 in Casey is 09:00–13:30 in Tehran.
Working (09–18) Awake, off the clock Asleep (23–07)
Pick a time and share it
19:26 Wed 7 Oct Casey = 14:56 Wed 7 Oct Tehran
Hour-by-hour conversion
| Casey (CAST)Every hour of today in the first city, with the matching time in the second. “Next day” means the calendar date is already tomorrow there. The highlighted row is right now. | Tehran (IRST) | |
|---|---|---|
| 00:00 | 19:30prev. day | |
| 01:00 | 20:30prev. day | |
| 02:00 | 21:30prev. day | |
| 03:00 | 22:30prev. day | |
| 04:00 | 23:30prev. day | |
| 05:00 | 00:30 | |
| 06:00 | 01:30 | |
| 07:00 | 02:30 | |
| 08:00 | 03:30 | |
| 09:00 | 04:30 | |
| 10:00 | 05:30 | |
| 11:00 | 06:30 | |
| 12:00 | 07:30 | |
| 13:00 | 08:30 | |
| 14:00 | 09:30 | Both at work |
| 15:00 | 10:30 | Both at work |
| 16:00 | 11:30 | Both at work |
| 17:00 | 12:30 | Both at work |
| 18:00 | 13:30 | |
| 19:00 | 14:30 | Now |
| 20:00 | 15:30 | |
| 21:00 | 16:30 | |
| 22:00 | 17:30 | |
| 23:00 | 18:30 |
About this conversion
CAST here means Casey Time, represented by Casey (Antarctica/Casey), currently UTC+8. IRST means Iran Time, represented by Tehran (Asia/Tehran), currently UTC+3:30.
Working hours are shown as 09:00–18:00 local, and sleeping hours as 23:00–07:00. The hour table is anchored on the current day in Casey; day boundaries are marked where the date differs.
Quick answers
- 09:00 CAST is 04:30 IRST
- 12:00 CAST is 07:30 IRST
- 15:00 CAST is 10:30 IRST
- 18:00 CAST is 13:30 IRST
Related conversions
- Casey Time to India TimeCAST → IST
- Casey Time to Kyrgyzstan TimeCAST → KGT
- Casey Time to Myanmar TimeCAST → MMT
- Casey Time to Sakhalin TimeCAST → SAKT
- Central Africa Time to Iran TimeCAT → IRST
- Central European Time to Iran TimeCET → IRST
- Cape Verde Time to Iran TimeCVT → IRST
- Hovd Time to Iran TimeHOVT → IRST
- Iran Time to India TimeIRST → IST
- Casey Time to Eastern TimeCAST → EST
- Time in Caseynow, DST, offset
- Time in Tehrannow, DST, offset