This is the schedule of buses, departure time, and arrival time. How to add a time gap between the two buses in this table?

Monday to Friday
Departs	Arrives
0:01	0:45
0:11	0:46
12:41	1:16
1:11	1:46
1:41	2:16
2:31	3:06
7:36	8:16
8:31	9:11
9:25	10:32
9:31	10:11
9:50	11:32
11:01	11:46
11:16	12:15
11:20	12:32
11:50	13:02
12:01	12:51
13:01	13:51
14:01	14:51
15:01	15:51
15:55	17:32
16:01	16:51
16:55	18:32