上午2:30用英语怎么说缩写

"2:30 AM" in English can be abbreviated as "2:30 AM." The abbreviation comes from the 24-hour time format, where AM represents the period from midnight to noon, and PM represents the period from noon to midnight.

Examples:

I usually wake up at 7:00 AM. (我通常在上午7:00醒来。)
The flight departs at 2:30 PM. (航班将于下午2:30点起飞。)