When it is 12:00 PM in San Juan, it is 9:00 PM the previous day in MST.
📞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.
San Juan is 15 hours ahead of MST.
🕐 Subtract 15 hours from San Juan time to get MST time.
San Juan uses 8 hours ahead of Universal Time (UTC+8) and MST uses 7 hours behind Universal Time (UTC-7).
| San Juan Time | MST Time | |
|---|---|---|
| 12 AM San Juan Time | ↔ | 9 AM MST Time |
| 1 AM San Juan Time | ↔ | 10 AM MST Time |
| 2 AM San Juan Time | ↔ | 11 AM MST Time |
| 3 AM San Juan Time | ↔ | 12 PM MST Time |
| 4 AM San Juan Time | ↔ | 1 PM MST Time |
| 5 AM San Juan Time | ↔ | 2 PM MST Time |
| 6 AM San Juan Time | ↔ | 3 PM MST Time |
| 7 AM San Juan Time | ↔ | 4 PM MST Time |
| 8 AM San Juan Time | ↔ | 5 PM MST Time |
| 9 AM San Juan Time | ↔ | 6 PM MST Time |
| 10 AM San Juan Time | ↔ | 7 PM MST Time |
| 11 AM San Juan Time | ↔ | 8 PM MST Time |
| San Juan Time | MST Time | |
|---|---|---|
| 12 PM San Juan Time | ↔ | 9 PM MST Time |
| 1 PM San Juan Time | ↔ | 10 PM MST Time |
| 2 PM San Juan Time | ↔ | 11 PM MST Time |
| 3 PM San Juan Time | ↔ | 12 AM MST Time |
| 4 PM San Juan Time | ↔ | 1 AM MST Time |
| 5 PM San Juan Time | ↔ | 2 AM MST Time |
| 6 PM San Juan Time | ↔ | 3 AM MST Time |
| 7 PM San Juan Time | ↔ | 4 AM MST Time |
| 8 PM San Juan Time | ↔ | 5 AM MST Time |
| 9 PM San Juan Time | ↔ | 6 AM MST Time |
| 10 PM San Juan Time | ↔ | 7 AM MST Time |
| 11 PM San Juan Time | ↔ | 8 AM MST Time |
San Juan is 15 hours ahead of MST.
San Juan is ahead of MST by 15 hours.
It is 6:00 PM the previous day in MST.