Dealing With Date Time
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Dealing With Date Time |
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os.time() to add or substract any number of any time unit (e.g. 10000 minutes or -3 months) without converting it to seconds. What is even better, that it deals with daylight savings too.
This feature of os.date() and os.time() is not documented on www.lua.org [1], resulting a large amount of questions on Stackoverflow[2].
-- no surprise here: os.date("%c", os.time{year = 2017, month = 01, day = 01, hour = 0, min = 0, sec = 0}) >> "Sun Jan 1 00:00:00 2017" -- and the undocumented feature: os.date("%c", os.time{year = 2017, month = 01, day = 01, hour = 0, min = 20000, sec = 0}) >> "Sat Jan 14 21:20:00 2017" -- also works with negative numbers: os.date("%c", os.time{year = 2017, month = 01, day = -20, hour = 0, min = 0, sec = 0}) >> "Sun Dec 11 00:00:00 2016"