"Sat, 18 May 2024 12:31:53"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240518
Only TIME
12:31:53
General datetime
2024-05-18 12:31:53Z
For Database
2024-05-18 12:31:53
For HTTP1.1
Sat, 18 May 2024 12:31:53 GMT