"Mon, 06 May 2024 04:40:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240506
Only TIME
04:40:21
General datetime
2024-05-06 04:40:21Z
For Database
2024-05-06 04:40:21
For HTTP1.1
Mon, 06 May 2024 04:40:21 GMT