"Sat, 18 May 2024 06:37:23"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240518
Only TIME
06:37:23
General datetime
2024-05-18 06:37:23Z
For Database
2024-05-18 06:37:23
For HTTP1.1
Sat, 18 May 2024 06:37:23 GMT