"Sat, 18 May 2024 16:07:55"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240518
Only TIME
16:07:55
General datetime
2024-05-18 16:07:55Z
For Database
2024-05-18 16:07:55
For HTTP1.1
Sat, 18 May 2024 16:07:55 GMT