Circle notation system
See also: Ma notation
| Hex | Time ISO 8601 |
Longitude ISO 6709 |
Degree | English | English acronym | HSV color, S=V=100 |
|---|---|---|---|---|---|---|
| .0 | 00:00:00 | -180 | 0 | North | N | ff0000 |
| .1 | 01:30:00 | 22.5 | North-northeast | NNE | ff6000 | |
| .2 | 03:00:00 | -45 | 45 | Northeast | NE | ffbf00 |
| .3 | 04:30:00 | 67.5 | East-northeast | ENE | dfff00 | |
| .4 | 06:00:00 | -90 | 90 | East | E | 80ff00 |
| .5 | 07:30:00 | 112.5 | East-southeast | ESE | 22ff00 | |
| .6 | 09:00:00 | -135 | 135 | Southeast | SE | 00ff40 |
| .7 | 10:30:00 | 157.5 | South-southeast | SSE | 00ff9d | |
| .8 | 12:00:00 | 0 | 180 | South | S | 00ffff |
| .9 | 13:30:00 | 202.5 | South-southwest | SSW | 00a2ff | |
| .A | 15:00:00 | 45 | 225 | Southwest | SW | 0040ff |
| .B | 16:30:00 | 247.5 | West-southwest | WSW | 1e00ff | |
| .C | 18:00:00 | 90 | 270 | West | W | 8000ff |
| .D | 19:30:00 | 292.5 | West-northwest | WNW | dd00ff | |
| .E | 21:00:00 | 135 | 315 | Northwest | NW | ff00bf |
| .F | 22:30:00 | 337.5 | North-northwest | NNW | ff0062 | |
| 1 | 24:00:00 | 180 | 360 |