Berikut jadwal puasa ramadhan Labuhanbatu Selatan, Sumatera Utara, Indonesia (13 April-13 Mei) 1442 Hijriyah atau 2021 Masehi imsakiyah dan sholat: imsak, subuh, terbit, duha, zuhur, asar, magrib, dan isya.
| TANGGAL | IMSAK | SUBUH | TERBIT | DUHA | ZUHUR | ASAR | MAGRIB | ISYA |
| 1 Ramadan 1442 H | 04:50 | 05:00 | 06:13 | 06:40 | 12:24 | 15:35 | 18:28 | 19:37 |
| 2 Ramadan 1442 H | 04:50 | 05:00 | 06:12 | 06:40 | 12:23 | 15:35 | 18:28 | 19:37 |
| 3 Ramadan 1442 H | 04:50 | 05:00 | 06:12 | 06:39 | 12:23 | 15:36 | 18:28 | 19:37 |
| 4 Ramadan 1442 H | 04:49 | 04:59 | 06:12 | 06:39 | 12:23 | 15:36 | 18:27 | 19:37 |
| 5 Ramadan 1442 H | 04:49 | 04:59 | 06:11 | 06:39 | 12:23 | 15:36 | 18:27 | 19:37 |
| 6 Ramadan 1442 H | 04:48 | 04:58 | 06:11 | 06:38 | 12:23 | 15:36 | 18:27 | 19:36 |
| 7 Ramadan 1442 H | 04:48 | 04:58 | 06:11 | 06:38 | 12:22 | 15:37 | 18:27 | 19:36 |
| 8 Ramadan 1442 H | 04:48 | 04:58 | 06:11 | 06:38 | 12:22 | 15:37 | 18:27 | 19:36 |
| 9 Ramadan 1442 H | 04:47 | 04:57 | 06:10 | 06:38 | 12:22 | 15:37 | 18:27 | 19:36 |
| 10 Ramadan 1442 H | 04:47 | 04:57 | 06:10 | 06:38 | 12:22 | 15:37 | 18:26 | 19:36 |
| 11 Ramadan 1442 H | 04:47 | 04:57 | 06:10 | 06:37 | 12:22 | 15:37 | 18:26 | 19:36 |
| 12 Ramadan 1442 H | 04:46 | 04:56 | 06:10 | 06:37 | 12:21 | 15:38 | 18:26 | 19:36 |
| 13 Ramadan 1442 H | 04:46 | 04:56 | 06:09 | 06:37 | 12:21 | 15:38 | 18:26 | 19:36 |
| 14 Ramadan 1442 H | 04:46 | 04:56 | 06:09 | 06:37 | 12:21 | 15:38 | 18:26 | 19:36 |
| 15 Ramadan 1442 H | 04:45 | 04:55 | 06:09 | 06:37 | 12:21 | 15:38 | 18:26 | 19:36 |
| 16 Ramadan 1442 H | 04:45 | 04:55 | 06:09 | 06:36 | 12:21 | 15:38 | 18:26 | 19:36 |
| 17 Ramadan 1442 H | 04:45 | 04:55 | 06:08 | 06:36 | 12:21 | 15:39 | 18:26 | 19:36 |
| 18 Ramadan 1442 H | 04:44 | 04:54 | 06:08 | 06:36 | 12:20 | 15:39 | 18:26 | 19:36 |
| 19 Ramadan 1442 H | 04:44 | 04:54 | 06:08 | 06:36 | 12:20 | 15:39 | 18:25 | 19:36 |
| 20 Ramadan 1442 H | 04:44 | 04:54 | 06:08 | 06:36 | 12:20 | 15:39 | 18:25 | 19:36 |
| 21 Ramadan 1442 H | 04:44 | 04:54 | 06:08 | 06:36 | 12:20 | 15:39 | 18:25 | 19:36 |
| 22 Ramadan 1442 H | 04:43 | 04:53 | 06:08 | 06:36 | 12:20 | 15:40 | 18:25 | 19:36 |
| 23 Ramadan 1442 H | 04:43 | 04:53 | 06:08 | 06:35 | 12:20 | 15:40 | 18:25 | 19:36 |
| 24 Ramadan 1442 H | 04:43 | 04:53 | 06:07 | 06:35 | 12:20 | 15:40 | 18:25 | 19:36 |
| 25 Ramadan 1442 H | 04:43 | 04:53 | 06:07 | 06:35 | 12:20 | 15:40 | 18:25 | 19:37 |
| 26 Ramadan 1442 H | 04:42 | 04:52 | 06:07 | 06:35 | 12:20 | 15:40 | 18:25 | 19:37 |
| 27 Ramadan 1442 H | 04:42 | 04:52 | 06:07 | 06:35 | 12:20 | 15:41 | 18:25 | 19:37 |
| 28 Ramadan 1442 H | 04:42 | 04:52 | 06:07 | 06:35 | 12:20 | 15:41 | 18:25 | 19:37 |
| 29 Ramadan 1442 H | 04:42 | 04:52 | 06:07 | 06:35 | 12:20 | 15:41 | 18:25 | 19:37 |
| 30 Ramadan 1442 H | 04:41 | 04:51 | 06:07 | 06:35 | 12:20 | 15:41 | 18:25 | 19:37 |
