Nagios Support Forum

Seeing as you have the GB timezone, my guess is your postgres is formatting things as "YYYY MM DD" and somewhere we hard-code an expected "YYYY DD MM" format. Might you be able to set your timezone to "US/Central" for testing and see if it goes away?

http://stackoverflow.com/questions/1177 ... tgres-psql

If it does then we can call this a bug and have the devs look at it.