"Sat, 15 Jun 2024 19:57:46"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240615
Only TIME
19:57:46
General datetime
2024-06-15 19:57:46Z
For Database
2024-06-15 19:57:46
For HTTP1.1
Sat, 15 Jun 2024 19:57:46 GMT