"3:30 PM" 这个时间在英语中可以说成 "three thirty in the afternoon" 或 "half past three in the afternoon"。
其中 "in the afternoon" 是指在下午的意思。"half past" 是表示已经过了半个小时，也可以说成 "half after"。
例句：
"I'll meet you at three thirty in the afternoon." (我会在下午3点30分和你见面。)
"The meeting is scheduled for half past three in the afternoon." (会议安排在下午3点半。)