我早晨六点半起床用英文怎么说

"I wake up at half past six in the morning" 是表达这个意思的常用说法。

其中，"half past" 是表示 "半过" 的意思，"six" 是表示 "六点" 的意思，"in the morning" 是表示 "在早上" 的意思。

例句：

I always wake up at half past six in the morning.
(我总是在早上六点半起床。)
I can't sleep in if I have to wake up at half past six in the morning.
(如果我需要在早上六点半起床，我就睡不晚了。)
She sets her alarm for half past six in the morning so she can exercise before work.
(她设置闹钟在早上六点半，这样她就可以在上班前锻炼。)