Some fixes to the timezone conversion between the date of a perforce change and the git commit.
Some fixes to the timezone conversion between the date of a perforce change and the git commit.

Signed-off-by: Simon Hausmann <0a3c2b6956b68ea9079d8d9063677b62a646d61b@kde.org>

destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git