Definition
it's half 1 (UK), it's half past 1 (UK, US): It's thirty minutes past 1 o'clock (13.30 or 01.30)
Note that half 1 is a British expression. In the U.S.A they use half after 1 or half past 1.
- "Why don't we meet at the "Gilded Truffle" on Union street, at half one on Thursday?"
- "Bruno : Half past 11 till 1 in the morning."
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