"Sat, 15 Jun 2024 19:05:03"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240615
Only TIME
19:05:03
General datetime
2024-06-15 19:05:03Z
For Database
2024-06-15 19:05:03
For HTTP1.1
Sat, 15 Jun 2024 19:05:03 GMT