Key Idea1 of 3
The :30 Pattern
In digital time, half past is always :30. Half past 1 is 1:30. Half past 4 is 4:30. Half past 11 is 11:30. The 30 means 30 minutes have passed.
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Math — Telling Time to the Half Hour
In digital time, half past is always :30. Half past 1 is 1:30. Half past 4 is 4:30. Half past 11 is 11:30. The 30 means 30 minutes have passed.