"Sat, 13 Apr 2024 04:40:51"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240413
Only TIME
04:40:51
General datetime
2024-04-13 04:40:51Z
For Database
2024-04-13 04:40:51
For HTTP1.1
Sat, 13 Apr 2024 04:40:51 GMT