"Sat, 18 May 2024 18:22:10"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240518
Only TIME
18:22:10
General datetime
2024-05-18 18:22:10Z
For Database
2024-05-18 18:22:10
For HTTP1.1
Sat, 18 May 2024 18:22:10 GMT