Question

What time is two and a half hours before 1:00 a.m.

Answer 1

1:00 AM (Date: n/m/y)

(-2 hours) ----> 11:00 PM (Date: n-1/m/y)

(-30 minutes) ----> 10:30 PM (Date: n-1/m/y)

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{2≤n≤28}