year (calendar)
| Symbol: | a, y |
| Category: | Time |
| SI Equivalent: | 3.1536×107 s |
| Dimension: | T |
| Notes | |
| 1 year (calendar) = 365 days | |
1 a, y =
| Permeability coefficient | ||
| Symbol | Unit Name | |
| 3.1536×107 | kg-m/N-s | kilogram meter per newton per second |
| 2.17008×1019 | perm-inch (0 °C) | perm-inch (0°C) |
| 2.16105×1019 | perm-inch (23 °C) | perm-inch (23°C) |
| 2.17008×1022 | perm-mil (0 °C) | perm-mil (0°C) |
| 2.16105×1022 | perm-mil (23 °C) | perm-mil (23°C) |
| Time | ||
| Symbol | Unit Name | |
| 1.30374×1024 | a.u. | a.u. of time |
| 3.65×107 | blink | |
| 365 | d | day |
| 366 | d (sider.) | day (sidereal) |
| 26.0714 | fortnight | |
| 8760 | h | hour |
| 3.35504×1030 | Jordan's elementary time | |
| 3.1536×1013 | ms | microsecond |
| 3.1536×1010 | ms | millisecond |
| 5.256×105 | min, mn | minute |
| 12.1667 | month (30 days) | |
| 13.3594 | month (sidereal) | |
| 12 | month (solar mean) | |
| 12.3601 | month (synodic), lunar month | |
| 3.1536×1016 | ns | nanosecond |
| 3.1536×107 | s | second |
| 3.1536×1015 | shake | |
| 52.1429 | w | week |
| 9.4608×1016 | wink | |
| 0.999307 | aastr. | year (astronomical), Bessel year |
| 0.999298 | year (sidereal) | |
| 0.999316 | a, y | year (solar mean) |
| 0.999337 | atrop. | year (tropical) |
