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