hour | 1 h | 2 h | 3 h | 4 h | 5 h | 6 h | 7 h | 8 h | 9 h | 10 h | 11 h | 12 h | 13 h | 14 h | 15 h | 16 h | 17 h | 18 h | 19 h | 20 h | 21 h | 22 h | 23 h | 24 h | 25 h | 26 h | 27 h | 28 h | 29 h | 30 h | 31 h | 32 h | 33 h | 34 h | 35 h | 36 h | 37 h | 38 h | 39 h | 40 h | 41 h | 42 h | 43 h | 44 h | 45 h | 46 h | 47 h | 48 h | 49 h | 50 h | 51 h | 52 h | 53 h | 54 h | 55 h | 56 h | 57 h | 58 h | 59 h | 60 h | 61 h | 62 h | 63 h | 64 h | 65 h | 66 h | 67 h | 68 h | 69 h | 70 h | 71 h | 72 h | 73 h | 74 h | 75 h | 76 h | 77 h | 78 h | 79 h | 80 h | 81 h | 82 h | 83 h | 84 h | 85 h | 86 h | 87 h | 88 h | 89 h | 90 h | 91 h | 92 h | 93 h | 94 h | 95 h | 96 h | 97 h | 98 h | 99 h | 100 h |
moment | 40 moment | 80 moment | 120 moment | 160 moment | 200 moment | 240 moment | 280 moment | 320 moment | 360 moment | 400 moment | 440 moment | 480 moment | 520 moment | 560 moment | 600 moment | 640 moment | 680 moment | 720 moment | 760 moment | 800 moment | 840 moment | 880 moment | 920 moment | 960 moment | 1 000 moment | 1 040 moment | 1 080 moment | 1 120 moment | 1 160 moment | 1 200 moment | 1 240 moment | 1 280 moment | 1 320 moment | 1 360 moment | 1 400 moment | 1 440 moment | 1 480 moment | 1 520 moment | 1 560 moment | 1 600 moment | 1 640 moment | 1 680 moment | 1 720 moment | 1 760 moment | 1 800 moment | 1 840 moment | 1 880 moment | 1 920 moment | 1 960 moment | 2 000 moment | 2 040 moment | 2 080 moment | 2 120 moment | 2 160 moment | 2 200 moment | 2 240 moment | 2 280 moment | 2 320 moment | 2 360 moment | 2 400 moment | 2 440 moment | 2 480 moment | 2 520 moment | 2 560 moment | 2 600 moment | 2 640 moment | 2 680 moment | 2 720 moment | 2 760 moment | 2 800 moment | 2 840 moment | 2 880 moment | 2 920 moment | 2 960 moment | 3 000 moment | 3 040 moment | 3 080 moment | 3 120 moment | 3 160 moment | 3 200 moment | 3 240 moment | 3 280 moment | 3 320 moment | 3 360 moment | 3 400 moment | 3 440 moment | 3 480 moment | 3 520 moment | 3 560 moment | 3 600 moment | 3 640 moment | 3 680 moment | 3 720 moment | 3 760 moment | 3 800 moment | 3 840 moment | 3 880 moment | 3 920 moment | 3 960 moment | 4 000 moment |
An hour (symbol: h; also abbreviated hr.) is a unit of time conventionally reckoned as 1⁄24 of a day and scientifically reckoned as 3,599–3,601 seconds, depending on conditions.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
hour | h | ≡ 60 min | = 3600 s | Metric system SI |
hours | moments | hours | moments |
---|---|---|---|
1 | = 40 | 6 | = 240 |
2 | = 80 | 7 | = 280 |
3 | = 120 | 8 | = 320 |
4 | = 160 | 9 | = 360 |
5 | = 200 | 10 | = 400 |
A moment (momentum) was a medieval unit of time. The movement of a shadow on a sundial covered 40 moments in a solar hour.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
moment | ≡ 90 s | ≡ 90 s | Metric system SI |
moments | hours | moments | hours |
---|---|---|---|
1 | = 0.025 | 6 | = 0.15 |
2 | = 0.05 | 7 | = 0.175 |
3 | = 0.075 | 8 | = 0.2 |
4 | = 0.1 | 9 | = 0.225 |
5 | = 0.125 | 10 | = 0.25 |
hours | moments |
---|---|
1 | = 40 |
0.025 | = 1 |
Symbol | Definition |
---|---|
≡ | exactly equal |
≈ | approximately equal to |
= | equal to |
digits | indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …) |