when I tried to install Armbian (Armbian_23.8.1_Lepotato_bookworm_current_6.1.50.img.xz) on my Le Potato, it asked me to enter the desired value of the TZ environment variable when I chose not to set the timezone automatically. however I am confused with what is a valid Posix timezone string. here are my attempts:

Please enter the desired value of the TZ environment variable.
For example, AEST-10 is abbreviated AEST and is 10 hours
ahead (east) of Greenwich, with no daylight saving time.
UTC
'UTC' is not a conforming Posix timezone string.
Please enter the desired value of the TZ environment variable.
For example, AEST-10 is abbreviated AEST and is 10 hours
ahead (east) of Greenwich, with no daylight saving time.
UTC-0
'UTC-0' is not a conforming Posix timezone string.
Please enter the desired value of the TZ environment variable.
For example, AEST-10 is abbreviated AEST and is 10 hours
ahead (east) of Greenwich, with no daylight saving time.
GMT
'GMT' is not a conforming Posix timezone string.
Please enter the desired value of the TZ environment variable.
For example, AEST-10 is abbreviated AEST and is 10 hours
ahead (east) of Greenwich, with no daylight saving time.
GMT-0
'GMT-0' is not a conforming Posix timezone string.
Please enter the desired value of the TZ environment variable.
For example, AEST-10 is abbreviated AEST and is 10 hours
ahead (east) of Greenwich, with no daylight saving time.
Etc/UTC
'Etc/UTC' is not a conforming Posix timezone string.
Please enter the desired value of the TZ environment variable.
For example, AEST-10 is abbreviated AEST and is 10 hours
ahead (east) of Greenwich, with no daylight saving time.
AEST-10
'AEST-10' is not a conforming Posix timezone string.

 

Edited November 14, 20232 yr by CocoNut
typo

`sudo dpkg-reconfigure tzdata` doesn't work for you?

For anyone who had the same kind of issues, 'UTC-0' worked for me.

Edited August 24, 20242 yr by Guest
typo

I had problems with the update: apt update

supposedly it was a problem with time.
helped:

sudo apt-get install ntpdate
sudo ntpdate pool.ntp.org

and I tried before the entry :upade
 

apt-get -o Acquire::Check-Valid-Until=false -o Acquire::Check-Date=false update

but I had another problem with the reboot option which didn't always work?  And also restarting the Pi-3 LTS after the poweroff option from the button on the case for 2 seconds.

I switched to FW from the Orange PI provider:
Orangepi3-lts_3.0.8_debian_bullseye_server_linux5.16.17
and now it's OK?

Edited September 8, 20242 yr by kris777

I am having the exact same issue with Armbian 24.11.1 Bookworm. Just like the original post, the OS isn't even recognizing its own example. I'm stuck. I can't go back and choose something else. I can't skip. I can't report this as a bug since it is happening during setup.

'EST5EDT,M3.2.0/2,M11.1.0/2' is not a conforming Posix timezone string.
Please enter the desired value of the TZ environment variable.
For example, AEST-10 is abbreviated AEST and is 10 hours
ahead (east) of Greenwich, with no daylight savings.
'EST-5EDT' is not a conforming Posix timezone string.
Please enter the desired value of the TZ environment variable.
For example, AEST-10 is abbreviated AEST and is 10 hours
ahead (east) of Greenwich, with no daylight savings.
'EST5EDT' is not a conforming Posix timezone string.
Please enter the desired value of the TZ environment variable.
For example, AEST-10 is abbreviated AEST and is 10 hours
ahead (east) of Greenwich, with no daylight savings.
'EST-5' is not a conforming Posix timezone string.
Please enter the desired value of the TZ environment variable.
For example, AEST-10 is abbreviated AEST and is 10 hours
ahead (east) of Greenwich, with no daylight savings.
'UTC-0' is not a conforming Posix timezone string.
Please enter the desired value of the TZ environment variable.
For example, AEST-10 is abbreviated AEST and is 10 hours
ahead (east) of Greenwich, with no daylight savings.

'AEST-10' is not a conforming Posix timezone string.
Please enter the desired value of the TZ environment variable.
For example, AEST-10 is abbreviated AEST and is 10 hours
ahead (east) of Greenwich, with no daylight savings.

'UTC' is not a conforming Posix timezone string.
Please enter the desired value of the TZ environment variable.
For example, AEST-10 is abbreviated AEST and is 10 hours
ahead (east) of Greenwich, with no daylight savings.

'EST' is not a conforming Posix timezone string.
Please enter the desired value of the TZ environment variable.
For example, AEST-10 is abbreviated AEST and is 10 hours
ahead (east) of Greenwich, with no daylight savings.

'  ' is not a conforming Posix timezone string.
Please enter the desired value of the TZ environment variable.
For example, AEST-10 is abbreviated AEST and is 10 hours
ahead (east) of Greenwich, with no daylight savings.

chatgpt advised to type ":UTC" or ":Europe/Berlin" and it helped. 

my current timezone is PST (suppose to be PH starndard time) configured via raspi-config, im guessing it is confusing itself with PST (Pacific standard time US). it really messing with my TZ. For my part the only workaround is to set it manually before i can upgrade the system  

$ TZ=':UTC'; export TZ