... at odd hours 在闲暇的时候... keep bad hours晚睡晚起(晚归晚睡)... till all hours 到深更半夜 ...
2
?迟出迟归
...kick in... keep back扣留；隐瞒；阻止…前... keep bad hours迟出迟归，晚起晚睡... keep behind使留下来；离开一段距...
3
?不按时作息
不按时作息keep bad hours; keep late hours 固定作息法 constant routine .
权威例句
1.
The Berkshire Fire Brigades Union (BFBU) led the campaign to keep the station open for 24 hours-a-day and said having a smaller appliance there was a "bad idea".
BBC: Windsor fire station 24-hour cover proposal agreed