| day | 1 d | 2 d | 3 d | 4 d | 5 d | 6 d | 7 d | 8 d | 9 d | 10 d | 11 d | 12 d | 13 d | 14 d | 15 d | 16 d | 17 d | 18 d | 19 d | 20 d | 21 d | 22 d | 23 d | 24 d | 25 d | 26 d | 27 d | 28 d | 29 d | 30 d | 31 d | 32 d | 33 d | 34 d | 35 d | 36 d | 37 d | 38 d | 39 d | 40 d | 41 d | 42 d | 43 d | 44 d | 45 d | 46 d | 47 d | 48 d | 49 d | 50 d | 51 d | 52 d | 53 d | 54 d | 55 d | 56 d | 57 d | 58 d | 59 d | 60 d | 61 d | 62 d | 63 d | 64 d | 65 d | 66 d | 67 d | 68 d | 69 d | 70 d | 71 d | 72 d | 73 d | 74 d | 75 d | 76 d | 77 d | 78 d | 79 d | 80 d | 81 d | 82 d | 83 d | 84 d | 85 d | 86 d | 87 d | 88 d | 89 d | 90 d | 91 d | 92 d | 93 d | 94 d | 95 d | 96 d | 97 d | 98 d | 99 d | 100 d |
| fortnight | 0.0714286 fn | 0.1428571 fn | 0.2142857 fn | 0.2857143 fn | 0.3571429 fn | 0.4285714 fn | 0.5 fn | 0.5714286 fn | 0.6428571 fn | 0.7142857 fn | 0.7857143 fn | 0.8571429 fn | 0.9285714 fn | 1 fn | 1.0714286 fn | 1.1428571 fn | 1.2142857 fn | 1.2857143 fn | 1.3571429 fn | 1.4285714 fn | 1.5 fn | 1.5714286 fn | 1.6428571 fn | 1.7142857 fn | 1.7857143 fn | 1.8571429 fn | 1.9285714 fn | 2 fn | 2.0714286 fn | 2.1428571 fn | 2.2142857 fn | 2.2857143 fn | 2.3571429 fn | 2.4285714 fn | 2.5 fn | 2.5714286 fn | 2.6428571 fn | 2.7142857 fn | 2.7857143 fn | 2.8571429 fn | 2.9285714 fn | 3 fn | 3.0714286 fn | 3.1428571 fn | 3.2142857 fn | 3.2857143 fn | 3.3571429 fn | 3.4285714 fn | 3.5 fn | 3.5714286 fn | 3.6428571 fn | 3.7142857 fn | 3.7857143 fn | 3.8571429 fn | 3.9285714 fn | 4 fn | 4.0714286 fn | 4.1428571 fn | 4.2142857 fn | 4.2857143 fn | 4.3571429 fn | 4.4285714 fn | 4.5 fn | 4.5714286 fn | 4.6428571 fn | 4.7142857 fn | 4.7857143 fn | 4.8571429 fn | 4.9285714 fn | 5 fn | 5.0714286 fn | 5.1428571 fn | 5.2142857 fn | 5.2857143 fn | 5.3571429 fn | 5.4285714 fn | 5.5 fn | 5.5714286 fn | 5.6428571 fn | 5.7142857 fn | 5.7857143 fn | 5.8571429 fn | 5.9285714 fn | 6 fn | 6.0714286 fn | 6.1428571 fn | 6.2142857 fn | 6.2857143 fn | 6.3571429 fn | 6.4285714 fn | 6.5 fn | 6.5714286 fn | 6.6428571 fn | 6.7142857 fn | 6.7857143 fn | 6.8571429 fn | 6.9285714 fn | 7 fn | 7.0714286 fn | 7.1428571 fn |
A day is a unit of time. In common usage, it is either an interval equal to 24 hours or daytime, the consecutive period of time during which the Sun is above the horizon.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| day | d | = 24 h = 1440 min | = 86.4 ks | Metric system SI |
| days | fortnights | days | fortnights |
|---|---|---|---|
| 1 | = 0.071428571428571 | 6 | = 0.42857142857143 |
| 2 | = 0.14285714285714 | 7 | = 0.5 |
| 3 | = 0.21428571428571 | 8 | = 0.57142857142857 |
| 4 | = 0.28571428571429 | 9 | = 0.64285714285714 |
| 5 | = 0.35714285714286 | 10 | = 0.71428571428571 |
A fortnight is a unit of time equal to 14 days (2 weeks). The word derives from the Old English: fēowertyne niht, meaning "fourteen nights".
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| fortnight | fn | ≡ 2 wk | = 1.2096 Ms | Metric system SI |
| fortnights | days | fortnights | days |
|---|---|---|---|
| 1 | = 14 | 6 | = 84 |
| 2 | = 28 | 7 | = 98 |
| 3 | = 42 | 8 | = 112 |
| 4 | = 56 | 9 | = 126 |
| 5 | = 70 | 10 | = 140 |
| days | fortnights |
|---|---|
| 1 | = 0.0714286 |
| 14 | = 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 …) |