Convert Havana (GMT-5) to Adelaide (GMT+10:30) Time — 14 hours 30 minutes apart
America/Havana · GMT-5 · UTC-5 | Australia/Adelaide · GMT+10:30 · UTC+9:30 · 14 hours 30 minutes difference · 53 cities · DST applies
24-Hour Overlap Timeline
⚠ Havana and Adelaide observe daylight saving time — offset may vary by up to 1 hour seasonally
| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UTC → | ||||||||||||||||||||||||
| 🇨🇺 Havana UTC-5 | 7p | 8p | 9p | 10p | 11p | 12a | 1a | 2a | 3a | 4a | 5a | 6a | 7a | 8a | 9a | 10a | 11a | 12p | 1p | 2p | 3p | 4p | 5p | 6p |
| 🇦🇺 Adelaide UTC+9:30 | 9a | 10a | 11a | 12p | 1p | 2p | 3p | 4p | 5p | 6p | 7p | 8p | 9p | 10p | 11p | 12a | 1a | 2a | 3a | 4a | 5a | 6a | 7a | 8a |
Key Facts: Havana (GMT-5) vs Adelaide (GMT+10:30)
Find Cities in Havana & Adelaide Timezones
The GMT-5 and GMT+10:30 timezones are separated by 14 hours 30 minutes. Havana is the largest city in the America/Havana zone and Adelaide is the largest in Australia/Adelaide. Havana observes daylight saving time — the difference may change by 1 hour seasonally. For scheduling between these regions, the key fact is: there is no comfortable overlap during standard business hours.
Best Times to Schedule Calls: Havana (GMT-5) ↔ Adelaide (GMT+10:30)
| Havana (GMT-5) | Adelaide (GMT+10:30) | Quality |
|---|---|---|
| 12:00 AM | 2:00 PM | ❌ |
| 1:00 AM | 3:00 PM | ❌ |
| 2:00 AM | 4:00 PM | ❌ |
| 3:00 AM | 5:00 PM | ❌ |
| 4:00 AM | 6:00 PM | ❌ |
| 5:00 AM | 7:00 PM | ❌ |
| 6:00 AM | 8:00 PM | ❌ |
| 7:00 AM | 9:00 PM | ❌ |
| 8:00 AM | 10:00 PM | ❌ |
| 9:00 AM | 11:00 PM | ❌ |
| 10:00 AM | 12:00 AM +1 day | ❌ |
| 11:00 AM | 1:00 AM +1 day | ❌ |
| 12:00 PM | 2:00 AM +1 day | ❌ |
| 1:00 PM | 3:00 AM +1 day | ❌ |
| 2:00 PM | 4:00 AM +1 day | ❌ |
| 3:00 PM | 5:00 AM +1 day | ❌ |
| 4:00 PM | 6:00 AM +1 day | ❌ |
| 5:00 PM | 7:00 AM +1 day | ⚠️ |
| 6:00 PM | 8:00 AM +1 day | ⚠️ |
| 7:00 PM | 9:00 AM +1 day | ⚠️ |
| 8:00 PM | 10:00 AM +1 day | ❌ |
| 9:00 PM | 11:00 AM +1 day | ❌ |
| 10:00 PM | 12:00 PM +1 day | ❌ |
| 11:00 PM | 1:00 PM +1 day | ❌ |
Work hours defined as 09:00–18:00 local time. ✅ Both in work hours ⚠️ Borderline ❌ Outside work hours.
GMT-5 to GMT+10:30: Complete 24-Hour Time Conversion Table
| Havana (GMT-5) | Adelaide (GMT+10:30) | IST (UTC+5:30) |
|---|---|---|
| 12:00 AM | 2:30 PM | 10:30 AM |
| 1:00 AM | 3:30 PM | 11:30 AM |
| 2:00 AM | 4:30 PM | 12:30 PM |
| 3:00 AM | 5:30 PM | 1:30 PM |
| 4:00 AM | 6:30 PM | 2:30 PM |
| 5:00 AM | 7:30 PM | 3:30 PM |
| 6:00 AM | 8:30 PM | 4:30 PM |
| 7:00 AM | 9:30 PM | 5:30 PM |
| 8:00 AM | 10:30 PM | 6:30 PM |
| 9:00 AM | 11:30 PM | 7:30 PM |
| ← Date changes in Adelaide → | ||
| 10:00 AM | 12:30 AM +1 | 8:30 PM |
| 11:00 AM | 1:30 AM +1 | 9:30 PM |
| 12:00 PM | 2:30 AM +1 | 10:30 PM |
| 1:00 PM | 3:30 AM +1 | 11:30 PM |
| 2:00 PM | 4:30 AM +1 | 12:30 AM |
| 3:00 PM | 5:30 AM +1 | 1:30 AM |
| 4:00 PM | 6:30 AM +1 | 2:30 AM |
| 5:00 PM | 7:30 AM +1 | 3:30 AM |
| 6:00 PM | 8:30 AM +1 | 4:30 AM |
| 7:00 PM | 9:30 AM +1 | 5:30 AM |
| 8:00 PM | 10:30 AM +1 | 6:30 AM |
| 9:00 PM | 11:30 AM +1 | 7:30 AM |
| 10:00 PM | 12:30 PM +1 | 8:30 AM |
| 11:00 PM | 1:30 PM +1 | 9:30 AM |
IST (India Standard Time, UTC+5:30) shown as reference for Indian users. +1/−1 indicates a different calendar day.
52 Cities in Havana (GMT-5) & 1 Cities in Adelaide (GMT+10:30)
Havana & 51 more — Havana (GMT-5, UTC-5)
- Havana, CU 2.1M
- Santiago de Cuba, CU 445K
- Holguin, CU 350K
- Camaguey, CU 322K
- Santa Clara, CU 247K
- Bayamo, CU 235K
- Guantanamo, CU 228K
- Carlos Manuel de Cespedes, CU 224K
- Arroyo Naranjo, CU 210K
- Las Tunas, CU 202K
- Pinar del Rio, CU 189K
- Cienfuegos, CU 165K
- San Miguel del Padron, CU 161K
- Matanzas, CU 152K
- Manzanillo, CU 151K
Adelaide & cities — Adelaide (GMT+10:30, UTC+9:30)
- Adelaide, AU 1.4M
⚠️ Daylight Saving Time Affects This Pair
| Timezone | DST? | Standard | Daylight |
|---|---|---|---|
| America/Havana | Yes | UTC-5 | UTC-4 |
| Australia/Adelaide | Yes | UTC+9:30 | UTC+10.5 |
During DST periods the time difference between these zones may be 14 hours 30 minutes instead of 14 hours 30 minutes. Always verify the current offset if scheduling calls near clock-change dates.