Subtract 30 minutes from time value - 2021-05-12T19:30:00

[admin]

Use this:

Code:

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str = '2021-06-01T00:00:00' date = {} -- assign table keys for further conversion date.year, date.month, date.day, date.hour, date.min, date.sec =   str:match('(%d+)-(%d+)-(%d+)T(%d+):(%d+):(%d+)') -- convert to unix timestamp and subtract 30 minutes in seconds timestamp = os.time(date) - 30 * 60 -- convert timestamp to table date = os.date('*t', timestamp) log(date)