"Sun, 19 May 2024 16:23:00"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240519
Only TIME
16:23:00
General datetime
2024-05-19 16:23:00Z
For Database
2024-05-19 16:23:00
For HTTP1.1
Sun, 19 May 2024 16:23:00 GMT