Implementation
const List<List<String>> weekday_south = [
["7:15am", "7:17am", "7:18am", "7:20am", "7:23am", "7:25am"],
["7:27am", "7:29am", "7:30am", "7:32am", "7:35am", "7:37am"],
["7:39am", "7:41am", "7:42am", "7:44am", "7:47am", "7:49am"],
["7:51am", "7:53am", "7:54am", "7:56am", "7:59am", "8:01am"],
["8:03am", "8:05am", "8:06am", "8:08am", "8:11am", "8:13am"],
["8:15am", "8:17am", "8:18am", "8:20am", "8:23am", "8:25am"],
["8:27am", "8:29am", "8:30am", "8:32am", "8:35am", "8:37am"],
["8:39am", "8:41am", "8:42am", "8:44am", "8:47am", "8:49am"],
["8:51am", "8:53am", "8:54am", "8:56am", "8:59am", "9:01am"],
["9:03am", "9:05am", "9:06am", "9:08am", "9:11am", "9:13am"],
["9:15am", "9:17am", "9:18am", "9:20am", "9:23am", "9:25am"],
["9:20am", "9:22am", "9:23am", "9:25am", "9:28am", "9:30am"],
["9:32am", "9:34am", "9:35am", "9:37am", "9:40am", "9:42am"],
["9:44am", "9:46am", "9:47am", "9:49am", "9:52am", "9:54am"],
["9:56am", "9:58am", "9:59am", "10:01am", "10:04am", "10:06am"],
["10:08am", "10:10am", "10:11am", "10:13am", "10:16am", "10:18am"],
["10:20am", "10:22am", "10:23am", "10:25am", "10:28am", "10:30am"],
["10:32am", "10:34am", "10:35am", "10:37am", "10:40am", "10:42am"],
["10:44am", "10:46am", "10:47am", "10:49am", "10:52am", "10:54am"],
["10:56am", "10:58am", "10:59am", "11:01am", "11:04am", "11:06am"],
["11:08am", "11:10am", "11:11am", "11:13am", "11:16am", "11:18am"],
["11:20am", "11:22am", "11:23am", "11:25am", "11:28am", "11:30am"],
["11:32am", "11:34am", "11:35am", "11:37am", "11:40am", "11:42am"],
["11:44am", "11:46am", "11:47am", "11:49am", "11:52am", "11:54am"],
["11:56am", "11:58am", "11:59am", "12:01pm", "12:04pm", "12:06pm"],
["12:08pm", "12:10pm", "12:11pm", "12:13pm", "12:16pm", "12:18pm"],
["12:20pm", "12:22pm", "12:23pm", "12:25pm", "12:28pm", "12:30pm"],
["12:44pm", "12:46pm", "12:47pm", "12:49pm", "12:52pm", "12:54pm"],
["12:56pm", "12:58pm", "12:59pm", "1:01pm", "1:04pm", "1:06pm"],
["1:08pm", "1:10pm", "1:11pm", "1:13pm", "1:16pm", "1:18pm"],
["1:20pm", "1:22pm", "1:23pm", "1:25pm", "1:28pm", "1:30pm"],
["1:44pm", "1:46pm", "1:47pm", "1:49pm", "1:52pm", "1:54pm"],
["1:56pm", "1:58pm", "1:59pm", "2:01pm", "2:04pm", "2:06pm"],
["2:08pm", "2:10pm", "2:11pm", "2:13pm", "2:16pm", "2:18pm"],
["2:20pm", "2:22pm", "2:23pm", "2:25pm", "2:28pm", "2:30pm"],
["2:44pm", "2:46pm", "2:47pm", "2:49pm", "2:52pm", "2:54pm"],
["2:56pm", "2:58pm", "2:59pm", "3:01pm", "3:04pm", "3:06pm"],
["3:08pm", "3:10pm", "3:11pm", "3:13pm", "3:16pm", "3:18pm"],
["3:20pm", "3:22pm", "3:23pm", "3:25pm", "3:28pm", "3:30pm"],
["3:44pm", "3:46pm", "3:47pm", "3:49pm", "3:52pm", "3:54pm"],
["3:56pm", "3:58pm", "3:59pm", "4:01pm", "4:04pm", "4:06pm"],
["4:08pm", "4:10pm", "4:11pm", "4:13pm", "4:16pm", "4:18pm"],
["4:20pm", "4:22pm", "4:23pm", "4:25pm", "4:28pm", "4:30pm"],
["4:44pm", "4:46pm", "4:47pm", "4:49pm", "4:52pm", "4:54pm"],
["4:50pm", "4:52pm", "4:53pm", "4:55pm", "4:58pm", "5:00pm"],
["4:56pm", "4:58pm", "4:59pm", "5:01pm", "5:04pm", "5:06pm"],
["5:02pm", "5:04pm", "5:05pm", "5:07pm", "5:10pm", "5:12pm"],
["5:14pm", "5:16pm", "5:17pm", "5:19pm", "5:22pm", "5:24pm"],
["5:26pm", "5:28pm", "5:29pm", "5:31pm", "5:34pm", "5:36pm"],
["5:38pm", "5:40pm", "5:41pm", "5:43pm", "5:46pm", "5:48pm"],
["5:50pm", "5:52pm", "5:53pm", "5:55pm", "5:58pm", "6:00pm"],
["6:02pm", "6:04pm", "6:05pm", "6:07pm", "6:10pm", "6:12pm"],
["6:14pm", "6:16pm", "6:17pm", "6:19pm", "6:22pm", "6:24pm"],
["6:26pm", "6:28pm", "6:29pm", "6:31pm", "6:34pm", "6:36pm"],
["6:38pm", "6:40pm", "6:41pm", "6:43pm", "6:46pm", "6:48pm"],
["6:50pm", "6:52pm", "6:53pm", "6:55pm", "6:58pm", "7:00pm"],
["7:02pm", "7:04pm", "7:05pm", "7:07pm", "7:10pm", "7:12pm"],
["7:14pm", "7:16pm", "7:17pm", "7:19pm", "7:22pm", "7:24pm"],
["7:20pm", "7:22pm", "7:23pm", "7:25pm", "7:28pm", "7:30pm"],
["7:26pm", "7:28pm", "7:29pm", "7:31pm", "7:34pm", "7:36pm"],
["7:32pm", "7:34pm", "7:35pm", "7:37pm", "7:40pm", "7:42pm"],
["7:38pm", "7:40pm", "7:41pm", "7:43pm", "7:46pm", "7:48pm"],
["7:44pm", "7:46pm", "7:47pm", "7:49pm", "7:52pm", "7:54pm"],
["7:50pm", "7:52pm", "7:53pm", "7:55pm", "7:58pm", "8:00pm"],
["7:56pm", "7:58pm", "7:59pm", "8:01pm", "8:04pm", "8:06pm"],
["8:02pm", "8:04pm", "8:05pm", "8:07pm", "8:10pm", "8:12pm"],
["8:08pm", "8:10pm", "8:11pm", "8:13pm", "8:16pm", "8:18pm"],
["8:20pm", "8:22pm", "8:23pm", "8:25pm", "8:28pm", "8:30pm"],
["8:32pm", "8:34pm", "8:35pm", "8:37pm", "8:40pm", "8:42pm"],
["8:44pm", "8:46pm", "8:47pm", "8:49pm", "8:52pm", "8:54pm"],
["8:56pm", "8:58pm", "8:59pm", "9:01pm", "9:04pm", "9:06pm"],
["9:08pm", "9:10pm", "9:11pm", "9:13pm", "9:16pm", "9:18pm"],
["9:20pm", "9:22pm", "9:23pm", "9:25pm", "9:28pm", "9:30pm"],
["9:32pm", "9:34pm", "9:35pm", "9:37pm", "9:40pm", "9:42pm"],
["9:44pm", "9:46pm", "9:47pm", "9:49pm", "9:52pm", "9:54pm"],
["9:56pm", "9:58pm", "9:59pm", "10:01pm", "10:04pm", "10:06pm"],
["10:08pm", "10:10pm", "10:11pm", "10:13pm", "10:16pm", "10:18pm"],
["10:20pm", "10:22pm", "10:23pm", "10:25pm", "10:28pm", "10:30pm"],
["10:32pm", "10:34pm", "10:35pm", "10:37pm", "10:40pm", "10:42pm"]
]