| 1 | |
| 2 | == timeutils.lua == |
| 3 | |
| 4 | This is a standard Lua module. To install it on Vera, upload to `/usr/lib/lua/`. To use it, start your code with |
| 5 | {{{ |
| 6 | require "timeutils" |
| 7 | luup.timezone = -5 -- replace with your timezone |
| 8 | }}} |
| 9 | |
| 10 | ('''Note:''' currently it seems UI3 doesn't store the configured timezone in the `luup` table. When this issue gets resolved, we should get rid of that manual timezone setting. |
| 11 | |
| 12 | |
| 13 | '''`timeutils.lastmidnight ([time])`::''' |
| 14 | Returns the timestamp of the last midnight equal or preceding the given `time`. If no `time` is given, assumes current time. |
| 15 | |
| 16 | '''`timeutils.dayseconds ([time])`''':: |
| 17 | Returns the number of seconds since the last midnight to the given `time`. If no `time` is given, assumes current time. |
| 18 | |
| 19 | '''`timeutils.localtoUTC ([time] [, timezone])`''':: |
| 20 | Returns the 'date table' (same as returned by `os.date('*t', time)`) of the UTC time corresponding to the given `time`. If no `time` is given, assumes current time. If no `timezone` is given, assumes Vera's configured timezone. |
| 21 | |
| 22 | '''`timeutils.degrees (x [, ...])`''':: |
| 23 | Transforms one or more numbers expressing an angles in degrees into strings with degrees, minutes and seconds. For example: |
| 24 | {{{ |
| 25 | timeutils.degrees (23.2323) |
| 26 | => 23°13'56.28" |
| 27 | }}} |
| 28 | |
| 29 | '''`timeutils.sun_position ([time] [, place])`''':: |
| 30 | Returns sun's altitude and azimuth, in degrees, for the given `time` and `place`. If no `time` is given, assumes current time. The `place` parameter, if given, must be a table with `latitude`, `longitude` and `timezone` fields. If no `place` is given, uses the global `luup` table, which should have those fields. |
| 31 | |
| 32 | '''`timeutils.is_dark ([ime] [, place])`''':: |
| 33 | Returns a boolean indicating if the sun is below the horizon. |