watchnight
/ˈwɒtʃnaɪt/noun
1- a religious service held on New Year's Eve or Christmas Eve除夕礼拜; 圣诞前夕礼拜。
1.1
- historical a religious service extending over midnight, held on a monthly basis by Wesleyan Methodists〈史〉守望礼拜（卫理公会派教徒每月举行一次, 过了子夜才结束）。