Text-Overlay timezone adjust, help

[toolz]

As well as monitoring my own cameras, I also monitor a few cameras at my mothers house but my mothers house is in a -1/2 hour timezone difference to me etc.


I understand the following help info:

Time Zone Correction


For time zone correction in a text object overlay, add the special sequence {+n} to the beginning of the string, where n is a number 1-23, and the sign is either + or -. For example, a text overlay of {+3}%c will display the time 3 hours ahead of local time.

...but can't seem to get -1/2 hour timezone difference working.


have tried {-0.5}%c and even {-.5}%c but neither work.




would appreciate anyone that could help!




~cheers