

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) |

