how to write the sentence in english?

I am sorry to have called (頭先) you after your office hour.
or
I am sorry to have called you outside your office hour.

If you are on the phone talking to the person:
I am sorry to call you outside your office hour.

2008-08-13 07:05:01 補充：
你的意思是
唔好意思因為在辦工時間外打電話比人﹖

2008-08-13 23:36:18 補充：
after your office hour
or
outside your office hour

係呀

我唔知要用個咩preposition在 (???)

I feel apologetic about phoning you (???) your office hour

唔好意思, (頭先)不在你的辦工時間打電話比你

Sorry that I called you up (just now) whilst not in your office hours.
Note: (just now) 可用可不用, 因對方肯定知你何時打過電話給他.

i am sorry for bothering you while you are working.
OR
i am sorry for bothering you while you are working, do you want me to call again after the working hour.

u can write ....
I was sorry to bother your working when I called you.