Gregorian calendar vs. metric time
| Gregorian calendar | Metric time |
|---|---|
| 15 min. | 900 sec. |
| 1h | 3600 sec. |
| 1 day | 86400 sec. |
| 1 week | 604800 |
| 1 month | 2592000 sec. |
| 1 year | 31536000 sec. |
| 31.71 years | 1 billion seconds |
| Gregorian calendar | Metric time |
|---|---|
| 15 min. | 900 sec. |
| 1h | 3600 sec. |
| 1 day | 86400 sec. |
| 1 week | 604800 |
| 1 month | 2592000 sec. |
| 1 year | 31536000 sec. |
| 31.71 years | 1 billion seconds |