"Sat, 27 Apr 2024 20:15:30"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240427
Only TIME
20:15:30
General datetime
2024-04-27 20:15:30Z
For Database
2024-04-27 20:15:30
For HTTP1.1
Sat, 27 Apr 2024 20:15:30 GMT