"Sat, 18 May 2024 00:27:30"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240518
Only TIME
00:27:30
General datetime
2024-05-18 00:27:30Z
For Database
2024-05-18 00:27:30
For HTTP1.1
Sat, 18 May 2024 00:27:30 GMT