swift
1let date = Date() //2017-03/06-21:00
2let calendar = Calendar(identifier: .gregorian)
3
4var components = calendar.dateComponents([.day, .hour, .minute], from: date)
5
6components.day = 5
7components.hour = 23
8components.minute = 59
9
10let yesterday = calendar.date(from: components)! //2017-03/05-23:59
とやるか
swift
1
2var date = Date() //2017-03/06-21:00
3let calendar = Calendar(identifier: .gregorian)
4date = calendar.date(byAdding: .day, value: -1, to: date)! //2017-03/05-21:00
5date = calendar.date(byAdding: .hour, value: 2, to: date)! //2017-03/05-23:00
6date = calendar.date(byAdding: .minute, value: 59, to: date)! //2017-03/05-23:59
7
とやる方法があります。
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2017/03/06 14:19