From Newsgroup: comp.sys.acorn.apps

I have to add times. Some of the times are negative. When I type -05:53 FireWorks shows -04:-07:00 in the cell. What of the hell is that?

Also I tried to create a new style but

hh:mm; -hh;-mm [Negative]

didn't help here.

I have to calculate

02:35 + 09:42 - 00:45

for example.

We have here a base of 60 for minutes instead of hundred. It would also be
of interest to me to have a base of 24 hours for time of day but this is
not required.

Thanks,

A.
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