"Sat, 18 May 2024 16:24:14"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240518
Only TIME
16:24:14
General datetime
2024-05-18 16:24:14Z
For Database
2024-05-18 16:24:14
For HTTP1.1
Sat, 18 May 2024 16:24:14 GMT