When it is 12:00 PM in St. Louis, it is 1:00 PM in Boston.
📞The best time to schedule a call is between 9 AM and 4 PM in St. Louis, which is between 10 AM and 5 PM in Boston.
St. Louis is 1 hour behind Boston.
🕐 Add 1 hour to St. Louis time to get Boston time.
St. Louis uses 5 hours behind Universal Time (UTC-5) and Boston uses 4 hours behind Universal Time (UTC-4).
| St. Louis Time | Boston Time | |
|---|---|---|
| 12 AM St. Louis Time | ↔ | 1 AM Boston Time |
| 1 AM St. Louis Time | ↔ | 2 AM Boston Time |
| 2 AM St. Louis Time | ↔ | 3 AM Boston Time |
| 3 AM St. Louis Time | ↔ | 4 AM Boston Time |
| 4 AM St. Louis Time | ↔ | ☼ 5 AM Boston Time |
| ☼ 5 AM St. Louis Time | ↔ | ☼ 6 AM Boston Time |
| ☼ 6 AM St. Louis Time | ↔ | ☼ 7 AM Boston Time |
| ☼ 7 AM St. Louis Time | ↔ | ☼ 8 AM Boston Time |
| ☼ 8 AM St. Louis Time | ↔ | ☼ 9 AM Boston Time |
| ☼ 9 AM St. Louis Time | ↔ | ☼ 10 AM Boston Time |
| ☼ 10 AM St. Louis Time | ↔ | ☼ 11 AM Boston Time |
| ☼ 11 AM St. Louis Time | ↔ | ☼ 12 PM Boston Time |
| St. Louis Time | Boston Time | |
|---|---|---|
| ☼ 12 PM St. Louis Time | ↔ | ☼ 1 PM Boston Time |
| ☼ 1 PM St. Louis Time | ↔ | ☼ 2 PM Boston Time |
| ☼ 2 PM St. Louis Time | ↔ | ☼ 3 PM Boston Time |
| ☼ 3 PM St. Louis Time | ↔ | ☼ 4 PM Boston Time |
| ☼ 4 PM St. Louis Time | ↔ | ☼ 5 PM Boston Time |
| ☼ 5 PM St. Louis Time | ↔ | ☼ 6 PM Boston Time |
| ☼ 6 PM St. Louis Time | ↔ | ☼ 7 PM Boston Time |
| ☼ 7 PM St. Louis Time | ↔ | ☼ 8 PM Boston Time |
| ☼ 8 PM St. Louis Time | ↔ | 9 PM Boston Time |
| 9 PM St. Louis Time | ↔ | 10 PM Boston Time |
| 10 PM St. Louis Time | ↔ | 11 PM Boston Time |
| 11 PM St. Louis Time | ↔ | 12 AM Boston Time |
St. Louis is 1 hour behind Boston.
St. Louis is behind Boston by 1 hour.
It is 10:00 AM in Boston.