Term 1 Holiday Maths No.5

Moana set her digital watch at 13:00:00 on the last day of April.

Unfortunately, the watch loses 11 seconds a day.

What is the time on Moana’s watch when it is 13:00:00 on the last day of May? 31 days in may, 11 seconds off of each day,

D1: 12:59:49, D2:12:59:38, D3,12:59:27, D4:12:59:16, D5: 12:59:5, D6 :12:58:54, D7: 12:58:43, D8:12:58:32, D9:12:58:21, D10,12:58:11, D11,12:58:01, D12, 12:57:54, D13, 12:57:43, D14, 12:57:32:, D15, 12:57:21, D16, 12:57:10, D17, 12:56:59, D18, 12:56:48, D19, 12:56:37, D20, 12:56:26, D21, 12:56:15, 12:56:4, D22, 12:55:53, D23, 12:55:42, D24, 12:55:31, D25, 12:55:20, D26, 12:55:9, D27, 12:54:58, D28, 12:54:47, D29, 12:54:36, D30, 12:54:25, D31, 12:54:15, My answer has to be 12:54:15.