current timezone  = CEST
current time      = Thu, 18 Apr 2024 21:16:20 +0200
METAR format      = 2024-04-18T21:16:20

Now the METAR format time 2024-04-18T21:16:20 will be displayed using different TZ formats

no extra TZ       = Thu, 18 Apr 2024 21:16:20 +0200 from unixtime: 1713467780 using this string: 2024-04-18T21:16:20
zulu time         = Thu, 18 Apr 2024 23:16:20 +0200 from unixtime: 1713474980 using this string: 2024-04-18T21:16:20Z
 utc time         = Thu, 18 Apr 2024 23:16:20 +0200 from unixtime: 1713474980 using this string: 2024-04-18T21:16:20 UTC
utc time          = Thu, 18 Apr 2024 23:16:20 +0200 from unixtime: 1713474980 using this string: 2024-04-18T21:16:20UTC