When it is 12:00 PM in Sumy, it is 11:00 PM the previous day in HST.
📞There is no overlap during standard 9-to-5 business hours, so a call may need to be early or late in the day for one side.
Sumy is 13 hours ahead of HST.
🕐 Subtract 13 hours from Sumy time to get HST time.
Sumy uses 3 hours ahead of Universal Time (UTC+3) and HST uses 10 hours behind Universal Time (UTC-1).
| Sumy Time | HST Time | |
|---|---|---|
| 12 AM Sumy Time | ↔ | 11 AM HST Time |
| 1 AM Sumy Time | ↔ | 12 PM HST Time |
| 2 AM Sumy Time | ↔ | 1 PM HST Time |
| 3 AM Sumy Time | ↔ | 2 PM HST Time |
| 4 AM Sumy Time | ↔ | 3 PM HST Time |
| 5 AM Sumy Time | ↔ | 4 PM HST Time |
| 6 AM Sumy Time | ↔ | 5 PM HST Time |
| 7 AM Sumy Time | ↔ | 6 PM HST Time |
| 8 AM Sumy Time | ↔ | 7 PM HST Time |
| 9 AM Sumy Time | ↔ | 8 PM HST Time |
| 10 AM Sumy Time | ↔ | 9 PM HST Time |
| 11 AM Sumy Time | ↔ | 10 PM HST Time |
| Sumy Time | HST Time | |
|---|---|---|
| 12 PM Sumy Time | ↔ | 11 PM HST Time |
| 1 PM Sumy Time | ↔ | 12 AM HST Time |
| 2 PM Sumy Time | ↔ | 1 AM HST Time |
| 3 PM Sumy Time | ↔ | 2 AM HST Time |
| 4 PM Sumy Time | ↔ | 3 AM HST Time |
| 5 PM Sumy Time | ↔ | 4 AM HST Time |
| 6 PM Sumy Time | ↔ | 5 AM HST Time |
| 7 PM Sumy Time | ↔ | 6 AM HST Time |
| 8 PM Sumy Time | ↔ | 7 AM HST Time |
| 9 PM Sumy Time | ↔ | 8 AM HST Time |
| 10 PM Sumy Time | ↔ | 9 AM HST Time |
| 11 PM Sumy Time | ↔ | 10 AM HST Time |
Sumy is 13 hours ahead of HST.
Sumy is ahead of HST by 13 hours.
It is 8:00 PM the previous day in HST.