Ive been searching all over for a solution to this today and can find nothing new on this since the early 2000s. The emails displayed in Thunderbird are all displaying U… (read more)
Ive been searching all over for a solution to this today and can find nothing new on this since the early 2000s. The emails displayed in Thunderbird are all displaying UTC and until today, it had the correct time (Central).
I have verified the following:
1) My system time and timezone Windows 10 settings are correct
2) The Thunderbird options calendar timezone is correct
3) My email can also be read on a web interface that those times are in the correct zone
From those 3, I believe I narrowed the problem down to the client.
An old issue I have found involves the environment variable %TZ%. There are 2 tests suggested that point to this being the case:
1) Running "Date()" in the Thunderbird error console does indicate my timezone being used is UMT.
2) Running 'Components.classes["@mozilla.org/process/environment;1"].getService(Components.interfaces.nsIEnvironment).exists("TZ")' in the error console returns true, which the poster of that test (in 2004) says should return false if things are set properly. That poster does not explain how to change the variable.
Only way I have found to change TZ is by editing autoexec.bat, which no longer exists in Windows 10. I cannot find a setting for it anywhere in the registry. The variable is clearly set somewhere, but how do I change it????