Ok this is something of a mental blindspot for me - with the exception of people and small animals, I have issues with all the Japanese counters and get very easily confused about what fits in where. And sometimes, which counter to use when, especially for something like time.
So this is my question...(Please note I can't type in kanji or kana on this PC, bear with me, sorry for that :S)
Where time is concerned, ichi-ji is one o' clock and ichi-jikan is one hour, right?
I understand that without any problems.
Equally I know that half past one can be ichi-ji-sanjuppun or it can be ichi-ji-han.
What I'm stuck with (and I'm sure the answer is glaringly obvious) is how to say one hour MORE...or half an hour MORE.
I'm wondering if it's correct to say mou hitotsu no jikan (one more hour) or mou hitotsu no sanjuppun (30 minutes more)...somehow that seems clumsy but I can't think how else to say it :S
I'm sure I'm being very stupid but my idiot brain can't figure it out...