Awal bulan April 1989 (Masehi) bertepatan dengan tanggal 23 Sya'ban 1409 (Hijriyah), 24 Ruwah 1921 (Jawa), 4k Asada 1924 (Candra), dan 10 Kapat 1911 (Surya). Sedangkan akhir bulan April 1989 (Masehi) bertepatan dengan tanggal 23 Romadhon 1409 (Hijriyah), 24 Pasa 1921 (Jawa), 3k Srawana 1924 (Candra), dan 8 Kalima 1911 (Surya).
| 23 Sya'ban 1409 | Hijriyah | 23 Romadhon 1409 | | 24 Ruwah 1921 | Jawa | 24 Pasa 1921 | | 4k Asada 1924 | Candra | 3k Srawana 1924 | | 10 Kapat 1911 | Surya | 8 Kalima 1911 | |
| Ahad | Senin | Selasa | Rabu | Kamis | Jumat | Sabtu | | | | | 15s | 6 | | Pahing | | | | Kliwon | | ١٩ | 20 | | | | | | | 5k | 11 | | Pahing | | | | Kliwon | | ٢٤ | 25 | | | | | | | 10k | 16 | | Pahing | | | | Kliwon | | ٢٩ | 1 | | | | | | | | | | | | | | 5s | 26 | | Pahing | | | | Kliwon | | ١٠ | 11 | | | | | | | 10s | 31 | | Pahing | | | | Kliwon | | ١٥ | 16 | | | | | | | | 15s | 5 | | Pahing | | | | Kliwon | | ٢٠ | 21 | | | | | | | | 5k | 10 | | Pahing | | | | Kliwon | | ٢٥ | 26 | | | | | | |
| Masehi | Hijriyah |
| Tanggal | Tanggal | Peringatan |
| 1 April 1989 | 23 Sya'ban 1409 | |
| 2 April 1989 | 24 Sya'ban 1409 | |
| 3 April 1989 | 25 Sya'ban 1409 | |
| 4 April 1989 | 26 Sya'ban 1409 | |
| 5 April 1989 | 27 Sya'ban 1409 | |
| 6 April 1989 | 28 Sya'ban 1409 | |
| 7 April 1989 | 29 Sya'ban 1409 | |
| 8 April 1989 | 1 Romadhon 1409 | Awal Ramadhan |
| 9 April 1989 | 2 Romadhon 1409 | |
| 10 April 1989 | 3 Romadhon 1409 | |
| 11 April 1989 | 4 Romadhon 1409 | |
| 12 April 1989 | 5 Romadhon 1409 | |
| 13 April 1989 | 6 Romadhon 1409 | |
| 14 April 1989 | 7 Romadhon 1409 | |
| 15 April 1989 | 8 Romadhon 1409 | |
| 16 April 1989 | 9 Romadhon 1409 | |
| 17 April 1989 | 10 Romadhon 1409 | |
| 18 April 1989 | 11 Romadhon 1409 | |
| 19 April 1989 | 12 Romadhon 1409 | |
| 20 April 1989 | 13 Romadhon 1409 | |
| 21 April 1989 | 14 Romadhon 1409 | |
| 22 April 1989 | 15 Romadhon 1409 | |
| 23 April 1989 | 16 Romadhon 1409 | |
| 24 April 1989 | 17 Romadhon 1409 | Nuzulul Quran |
| 25 April 1989 | 18 Romadhon 1409 | |
| 26 April 1989 | 19 Romadhon 1409 | |
| 27 April 1989 | 20 Romadhon 1409 | |
| 28 April 1989 | 21 Romadhon 1409 | Lailatul Qadr |
| 29 April 1989 | 22 Romadhon 1409 | |
| 30 April 1989 | 23 Romadhon 1409 | Lailatul Qadr |
| Masehi | Jawa |
| Tanggal | Tanggal | Pasaran | Mongso | Wuku | Tahun | Windu | Lambang | Neptu |
| 1 April 1989 | 24 Ruwah 1921 | Wage | 7 Kadasa | Tambir | Wawu | Sengara | Kulawu | Sabtu (9) + Wage (4) = 13 |
| 2 April 1989 | 25 Ruwah 1921 | Kliwon | 8 Kadasa | Medangkungan | Wawu | Sengara | Kulawu | Ahad (5) + Kliwon (8) = 13 |
| 3 April 1989 | 26 Ruwah 1921 | Legi | 9 Kadasa | Medangkungan | Wawu | Sengara | Kulawu | Senin (4) + Legi (5) = 9 |
| 4 April 1989 | 27 Ruwah 1921 | Pahing | 10 Kadasa | Medangkungan | Wawu | Sengara | Kulawu | Selasa (3) + Pahing (9) = 12 |
| 5 April 1989 | 28 Ruwah 1921 | Pon | 11 Kadasa | Medangkungan | Wawu | Sengara | Kulawu | Rabu (7) + Pon (7) = 14 |
| 6 April 1989 | 29 Ruwah 1921 | Wage | 12 Kadasa | Medangkungan | Wawu | Sengara | Kulawu | Kamis (8) + Wage (4) = 12 |
| 7 April 1989 | 1 Pasa 1921 | Kliwon | 13 Kadasa | Medangkungan | Wawu | Sengara | Kulawu | Jumat (6) + Kliwon (8) = 14 |
| 8 April 1989 | 2 Pasa 1921 | Legi | 14 Kadasa | Medangkungan | Wawu | Sengara | Kulawu | Sabtu (9) + Legi (5) = 14 |
| 9 April 1989 | 3 Pasa 1921 | Pahing | 15 Kadasa | Maktal | Wawu | Sengara | Kulawu | Ahad (5) + Pahing (9) = 14 |
| 10 April 1989 | 4 Pasa 1921 | Pon | 16 Kadasa | Maktal | Wawu | Sengara | Kulawu | Senin (4) + Pon (7) = 11 |
| 11 April 1989 | 5 Pasa 1921 | Wage | 17 Kadasa | Maktal | Wawu | Sengara | Kulawu | Selasa (3) + Wage (4) = 7 |
| 12 April 1989 | 6 Pasa 1921 | Kliwon | 18 Kadasa | Maktal | Wawu | Sengara | Kulawu | Rabu (7) + Kliwon (8) = 15 |
| 13 April 1989 | 7 Pasa 1921 | Legi | 19 Kadasa | Maktal | Wawu | Sengara | Kulawu | Kamis (8) + Legi (5) = 13 |
| 14 April 1989 | 8 Pasa 1921 | Pahing | 20 Kadasa | Maktal | Wawu | Sengara | Kulawu | Jumat (6) + Pahing (9) = 15 |
| 15 April 1989 | 9 Pasa 1921 | Pon | 21 Kadasa | Maktal | Wawu | Sengara | Kulawu | Sabtu (9) + Pon (7) = 16 |
| 16 April 1989 | 10 Pasa 1921 | Wage | 22 Kadasa | Waye | Wawu | Sengara | Kulawu | Ahad (5) + Wage (4) = 9 |
| 17 April 1989 | 11 Pasa 1921 | Kliwon | 23 Kadasa | Waye | Wawu | Sengara | Kulawu | Senin (4) + Kliwon (8) = 12 |
| 18 April 1989 | 12 Pasa 1921 | Legi | 24 Kadasa | Waye | Wawu | Sengara | Kulawu | Selasa (3) + Legi (5) = 8 |
| 19 April 1989 | 13 Pasa 1921 | Pahing | 1 Dhesta | Waye | Wawu | Sengara | Kulawu | Rabu (7) + Pahing (9) = 16 |
| 20 April 1989 | 14 Pasa 1921 | Pon | 2 Dhesta | Waye | Wawu | Sengara | Kulawu | Kamis (8) + Pon (7) = 15 |
| 21 April 1989 | 15 Pasa 1921 | Wage | 3 Dhesta | Waye | Wawu | Sengara | Kulawu | Jumat (6) + Wage (4) = 10 |
| 22 April 1989 | 16 Pasa 1921 | Kliwon | 4 Dhesta | Waye | Wawu | Sengara | Kulawu | Sabtu (9) + Kliwon (8) = 17 |
| 23 April 1989 | 17 Pasa 1921 | Legi | 5 Dhesta | Menahil | Wawu | Sengara | Kulawu | Ahad (5) + Legi (5) = 10 |
| 24 April 1989 | 18 Pasa 1921 | Pahing | 6 Dhesta | Menahil | Wawu | Sengara | Kulawu | Senin (4) + Pahing (9) = 13 |
| 25 April 1989 | 19 Pasa 1921 | Pon | 7 Dhesta | Menahil | Wawu | Sengara | Kulawu | Selasa (3) + Pon (7) = 10 |
| 26 April 1989 | 20 Pasa 1921 | Wage | 8 Dhesta | Menahil | Wawu | Sengara | Kulawu | Rabu (7) + Wage (4) = 11 |
| 27 April 1989 | 21 Pasa 1921 | Kliwon | 9 Dhesta | Menahil | Wawu | Sengara | Kulawu | Kamis (8) + Kliwon (8) = 16 |
| 28 April 1989 | 22 Pasa 1921 | Legi | 10 Dhesta | Menahil | Wawu | Sengara | Kulawu | Jumat (6) + Legi (5) = 11 |
| 29 April 1989 | 23 Pasa 1921 | Pahing | 11 Dhesta | Menahil | Wawu | Sengara | Kulawu | Sabtu (9) + Pahing (9) = 18 |
| 30 April 1989 | 24 Pasa 1921 | Pon | 12 Dhesta | Prangbakat | Wawu | Sengara | Kulawu | Ahad (5) + Pon (7) = 12 |
| Masehi | Sunda |
| Tanggal | Candra | Surya | Pasaran | Wuku | Tahun | Windu |
| 1 April 1989 | 4k Asada 1924 | 10 Kapat 1911 | Manis | Dukut | Kalabang | Adi |
| 2 April 1989 | 5k Asada 1924 | 11 Kapat 1911 | Pahing | Watugunung | Kalabang | Adi |
| 3 April 1989 | 6k Asada 1924 | 12 Kapat 1911 | Pon | Watugunung | Kalabang | Adi |
| 4 April 1989 | 7k Asada 1924 | 13 Kapat 1911 | Wage | Watugunung | Kalabang | Adi |
| 5 April 1989 | 8k Asada 1924 | 14 Kapat 1911 | Kaliwon | Watugunung | Kalabang | Adi |
| 6 April 1989 | 9k Asada 1924 | 15 Kapat 1911 | Manis | Watugunung | Kalabang | Adi |
| 7 April 1989 | 10k Asada 1924 | 16 Kapat 1911 | Pahing | Watugunung | Kalabang | Adi |
| 8 April 1989 | 11k Asada 1924 | 17 Kapat 1911 | Pon | Watugunung | Kalabang | Adi |
| 9 April 1989 | 12k Asada 1924 | 18 Kapat 1911 | Wage | Sinta | Kalabang | Adi |
| 10 April 1989 | 13k Asada 1924 | 19 Kapat 1911 | Kaliwon | Sinta | Kalabang | Adi |
| 11 April 1989 | 14k Asada 1924 | 20 Kapat 1911 | Manis | Sinta | Kalabang | Adi |
| 12 April 1989 | 15k Asada 1924 | 21 Kapat 1911 | Pahing | Sinta | Kalabang | Adi |
| 13 April 1989 | 1s Srawana 1924 | 22 Kapat 1911 | Pon | Sinta | Kalabang | Adi |
| 14 April 1989 | 2s Srawana 1924 | 23 Kapat 1911 | Wage | Sinta | Kalabang | Adi |
| 15 April 1989 | 3s Srawana 1924 | 24 Kapat 1911 | Kaliwon | Sinta | Kalabang | Adi |
| 16 April 1989 | 4s Srawana 1924 | 25 Kapat 1911 | Manis | Landep | Kalabang | Adi |
| 17 April 1989 | 5s Srawana 1924 | 26 Kapat 1911 | Pahing | Landep | Kalabang | Adi |
| 18 April 1989 | 6s Srawana 1924 | 27 Kapat 1911 | Pon | Landep | Kalabang | Adi |
| 19 April 1989 | 7s Srawana 1924 | 28 Kapat 1911 | Wage | Landep | Kalabang | Adi |
| 20 April 1989 | 8s Srawana 1924 | 29 Kapat 1911 | Kaliwon | Landep | Kalabang | Adi |
| 21 April 1989 | 9s Srawana 1924 | 30 Kapat 1911 | Manis | Landep | Kalabang | Adi |
| 22 April 1989 | 10s Srawana 1924 | 31 Kapat 1911 | Pahing | Landep | Kalabang | Adi |
| 23 April 1989 | 11s Srawana 1924 | 1 Kalima 1911 | Pon | Wukir | Kalabang | Adi |
| 24 April 1989 | 12s Srawana 1924 | 2 Kalima 1911 | Wage | Wukir | Kalabang | Adi |
| 25 April 1989 | 13s Srawana 1924 | 3 Kalima 1911 | Kaliwon | Wukir | Kalabang | Adi |
| 26 April 1989 | 14s Srawana 1924 | 4 Kalima 1911 | Manis | Wukir | Kalabang | Adi |
| 27 April 1989 | 15s Srawana 1924 | 5 Kalima 1911 | Pahing | Wukir | Kalabang | Adi |
| 28 April 1989 | 1k Srawana 1924 | 6 Kalima 1911 | Pon | Wukir | Kalabang | Adi |
| 29 April 1989 | 2k Srawana 1924 | 7 Kalima 1911 | Wage | Wukir | Kalabang | Adi |
| 30 April 1989 | 3k Srawana 1924 | 8 Kalima 1911 | Kaliwon | Kurantil | Kalabang | Adi |
