Jumat (26/5) tadi malam, Pemerintah melalui Kementerian Agama (Kemenag) RI telah menetapkan bahwa 1 Ramadhan 1438 Hijriyah jatuh pada Sabtu (27/5).
Adapun untuk pelaksanaan ibadah puasa Ramadhan kali ini tidak ada perbedaan, yakni serentak pada hari Sabtu (27/5). Berikut ini Jadwal Imsakiyah Ramadhan 1438 Hijriah untuk wilayah Kota Pekanbaru dan sekitarnya:
| Hijri | Tanggal | Imsak | Subuh | Terbit | Duha | Zuhur | Asar | Magrib | Isya |
| 1 Ramadhan | Sabtu, 27 Mei 2017 | 04:36 | 04:46 | 06:04 | 06:32 | 12:14 | 15:38 | 18:18 | 19:32 |
| 2 Ramadhan | Ahad, 28 Mei 2017 | 04:36 | 04:46 | 06:04 | 06:32 | 12:14 | 15:38 | 18:19 | 19:32 |
| 3 Ramadhan | Senin, 29 Mei 2017 | 04:36 | 04:46 | 06:04 | 06:32 | 12:15 | 15:39 | 18:19 | 19:32 |
| 4 Ramadhan | Selasa, 30 Mei 2017 | 04:36 | 04:46 | 06:04 | 06:32 | 12:15 | 15:39 | 18:19 | 19:32 |
| 5 Ramadhan | Rabu, 31 Mei 2017 | 04:36 | 04:46 | 06:05 | 06:32 | 12:15 | 15:39 | 18:19 | 19:33 |
| 6 Ramadhan | Kamis, 01 Juni 2017 | 04:36 | 04:46 | 06:05 | 06:32 | 12:15 | 15:39 | 18:19 | 19:33 |
| 7 Ramadhan | Jumat, 02 Juni 2017 | 04:36 | 04:46 | 06:05 | 06:33 | 12:15 | 15:39 | 18:19 | 19:33 |
| 8 Ramadhan | Sabtu, 03 Juni 2017 | 04:36 | 04:46 | 06:05 | 06:33 | 12:15 | 15:40 | 18:20 | 19:33 |
| 9 Ramadhan | Ahad, 04 Juni 2017 | 04:37 | 04:47 | 06:05 | 06:33 | 12:15 | 15:40 | 18:20 | 19:34 |
| 10 Ramadhan | Senin, 05 Juni 2017 | 04:37 | 04:47 | 06:05 | 06:33 | 12:16 | 15:40 | 18:20 | 19:34 |
| 11 Ramadhan | Selasa, 06 Juni 2017 | 04:37 | 04:47 | 06:05 | 06:33 | 12:16 | 15:40 | 18:20 | 19:34 |
| 12 Ramadhan | Rabu, 07 Juni 2017 | 04:37 | 04:47 | 06:06 | 06:34 | 12:16 | 15:41 | 18:20 | 19:34 |
| 13 Ramadhan | Kamis, 08 Juni 2017 | 04:37 | 04:47 | 06:06 | 06:34 | 12:16 | 15:41 | 18:21 | 19:35 |
| 14 Ramadhan | Jumat, 09 Juni 2017 | 04:37 | 04:47 | 06:06 | 06:34 | 12:16 | 15:41 | 18:21 | 19:35 |
| 15 Ramadhan | Sabtu, 10 Juni 2017 | 04:37 | 04:47 | 06:06 | 06:34 | 12:17 | 15:41 | 18:21 | 19:35 |
| 16 Ramadhan | Ahad, 11 Juni 2017 | 04:37 | 04:47 | 06:06 | 06:34 | 12:17 | 15:42 | 18:21 | 19:35 |
| 17 Ramadhan | Senin, 12 Juni 2017 | 04:38 | 04:48 | 06:07 | 06:35 | 12:17 | 15:42 | 18:21 | 19:36 |
| 18 Ramadhan | Selasa, 13 Juni 2017 | 04:38 | 04:48 | 06:07 | 06:35 | 12:17 | 15:42 | 18:22 | 19:36 |
| 19 Ramadhan | Rabu, 14 Juni 2017 | 04:38 | 04:48 | 06:07 | 06:35 | 12:17 | 15:42 | 18:22 | 19:36 |
| 20 Ramadhan | Kamis, 15 Juni 2017 | 04:38 | 04:48 | 06:07 | 06:35 | 12:18 | 15:42 | 18:22 | 19:36 |
| 21 Ramadhan | Jumat, 16 Juni 2017 | 04:38 | 04:48 | 06:07 | 06:35 | 12:18 | 15:43 | 18:22 | 19:37 |
| 22 Ramadhan | Sabtu, 17 Juni 2017 | 04:38 | 04:48 | 06:08 | 06:36 | 12:18 | 15:43 | 18:22 | 19:37 |
| 23 Ramadhan | Ahad, 18 Juni 2017 | 04:39 | 04:49 | 06:08 | 06:36 | 12:18 | 15:43 | 18:23 | 19:37 |
| 24 Ramadhan | Senin, 19 Juni 2017 | 04:39 | 04:49 | 06:08 | 06:36 | 12:18 | 15:43 | 18:23 | 19:37 |
| 25 Ramadhan | Selasa, 20 Juni 2017 | 04:39 | 04:49 | 06:08 | 06:36 | 12:19 | 15:44 | 18:23 | 19:38 |
| 26 Ramadhan | Rabu, 21 Juni 2017 | 04:39 | 04:49 | 06:08 | 06:36 | 12:19 | 15:44 | 18:23 | 19:38 |
| 27 Ramadhan | Kamis, 22 Juni 2017 | 04:39 | 04:49 | 06:09 | 06:37 | 12:19 | 15:44 | 18:24 | 19:38 |
| 28 Ramadhan | Jumat, 23 Juni 2017 | 04:40 | 04:50 | 06:09 | 06:37 | 12:19 | 15:44 | 18:24 | 19:38 |
| 29 Ramadhan | Sabtu, 24 Juni 2017 | 04:40 | 04:50 | 06:09 | 06:37 | 12:20 | 15:45 | 18:24 | 19:38 |