"Date format not supported"

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Hello, can you please check your locale settings? Just type locale in a terminal and paste the info here. It might be related to that.

Some more info is here https://help.ubuntu.com/community/Locale. Maybe you can find a fix.

Thanks.

locale: Cannot set LC_CTYPE to default locale: No such file or directory
locale: Cannot set LC_MESSAGES to default locale: No such file or directory
locale: Cannot set LC_ALL to default locale: No such file or directory
LANG=en_US.UTF-8
LANGUAGE=
LC_CTYPE="en_US.UTF-8"
LC_NUMERIC="en_US.UTF-8"
LC_TIME="en_US.UTF-8"
LC_COLLATE="en_US.UTF-8"
LC_MONETARY="en_US.UTF-8"
LC_MESSAGES="en_US.UTF-8"
LC_PAPER="en_US.UTF-8"
LC_NAME="en_US.UTF-8"
LC_ADDRESS="en_US.UTF-8"
LC_TELEPHONE="en_US.UTF-8"
LC_MEASUREMENT="en_US.UTF-8"
LC_IDENTIFICATION="en_US.UTF-8"
LC_ALL=

Status changed to 'Confirmed' because the bug affects multiple users.

This definitely seems to be a problem with the indicator being unable to cope with an unexpected locale setting. I had "export LANG=C" in my ~/.profile file, and saw the same behavior. After modifying the line to "export LC_COLLATE=C", the datetime-indicator now works properly.

I also hit this problem, caused by LANG=C . Switched to LC_ALL=C and the clock now displays as it should.

This affects me, too.

Output of locale:
locale: Cannot set LC_ALL to default locale: No such file or directory
LANG=en_US.UTF-8
LANGUAGE=
LC_CTYPE="en_US.UTF-8"
LC_NUMERIC=nb_NO.UTF-8
LC_TIME=nb_NO.UTF-8
LC_COLLATE="en_US.UTF-8"
LC_MONETARY=nb_NO.UTF-8
LC_MESSAGES="en_US.UTF-8"
LC_PAPER=nb_NO.UTF-8
LC_NAME=nb_NO.UTF-8
LC_ADDRESS=nb_NO.UTF-8
LC_TELEPHONE=nb_NO.UTF-8
LC_MEASUREMENT=nb_NO.UTF-8
LC_IDENTIFICATION=nb_NO.UTF-8
LC_ALL=

arnab@arnab-Latitude-E4300:~/git$ locale
locale: Cannot set LC_CTYPE to default locale: No such file or directory
locale: Cannot set LC_MESSAGES to default locale: No such file or directory
locale: Cannot set LC_ALL to default locale: No such file or directory
LANG=en_US.UTF-8
LANGUAGE=en_US:en
LC_CTYPE="en_US.UTF-8"
LC_NUMERIC=en_US.UTF-8
LC_TIME=en_US.UTF-8
LC_COLLATE="en_US.UTF-8"
LC_MONETARY=en_US.UTF-8
LC_MESSAGES="en_US.UTF-8"
LC_PAPER=en_US.UTF-8
LC_NAME=en_US.UTF-8
LC_ADDRESS=en_US.UTF-8
LC_TELEPHONE=en_US.UTF-8
LC_MEASUREMENT=en_US.UTF-8
LC_IDENTIFICATION=en_US.UTF-8
LC_ALL=

Same as the above

This has occured to me after Installing a different language pack and then removing it.

Putting English back on top of Language Support menu, applying the settings system-wide and restarting has fixed it.

This bug affects me too.

Thank you for taking the time to report this bug and helping to make Ubuntu better. We are sorry that we do not always have the capacity to look at all reported bugs in a timely manner. There have been many changes in Ubuntu since that time you reported the bug and your problem may have been fixed with some of the updates. It would help us a lot if you could test it on a currently supported Ubuntu version. When you test it and it is still an issue, kindly upload the updated logs by running only once:
apport-collect <bug #>

and any other logs that are relevant for this particular issue.

[Expired for indicator-datetime (Ubuntu) because there has been no activity for 60 days.]