Tahun 1840 Jawa dimulai pada Kamis, 1 Sura 1840, dengan jumlah 354 hari, dan bukan tahun kabisat. Awal tahun 1840 Jawa bertepatan dengan 13 Januari 1910 Masehi dan 1 Muharrom 1328 Hijriyah.
Akhir tahun 1840 Jawa bertepatan dengan 1 Januari 1911 Masehi dan 29 Dzulhijjah 1328 Hijriyah.
Tahun 1840 Jawa ini termasuk dalam windu Adi, dengan nama tahun Ba, dan lambang Kulawu.
Mulud 1840 |
| 13 Maret 1910 - 11 April 1910 |
| 1 Robi'ul Awwal 1328 - 30 Robi'ul Awwal 1328 |
| Wuku | Radite Ra | Soma So | Hanggara Ha | Budha Bu | Respati Re | Sukra Su | Tumpak Tu |
|---|---|---|---|---|---|---|---|
| Tolu | 13 1 1 Kliwon | 14 2 2 Legi | 15 3 3 Pahing | 16 4 4 Pon | 17 5 5 Wage | 18 6 6 Kliwon | 19 7 7 Legi |
| Gumbreg | 20 8 8 Pahing | 21 9 9 Pon | 22 10 10 Wage | 23 11 11 Kliwon | 24 12 12 Legi | 25 13 13 Pahing | 26 14 14 Pon |
| Warigalit | 27 15 15 Wage | 28 16 16 Kliwon | 29 17 17 Legi | 30 18 18 Pahing | 31 19 19 Pon | 1 20 20 Wage | 2 21 21 Kliwon |
| Warigagung | 3 22 22 Legi | 4 23 23 Pahing | 5 24 24 Pon | 6 25 25 Wage | 7 26 26 Kliwon | 8 27 27 Legi | 9 28 28 Pahing |
| Julungwangi | 10 29 29 Pon | 11 30 30 Wage | 12 1 1 Kliwon | 13 2 2 Legi | 14 3 3 Pahing | 15 4 4 Pon | 16 5 5 Wage |
| 12 | Maulid Nabi Muhammad SAW 1328 Hijriyah |
| 13 | Wafat Yesus Kristus 1910 |
Awal bulan Mulud 1840 bertepatan dengan 13 Maret 1910 Masehi dan 1 Robi'ul Awwal 1328 Hijriyah. Sedangkan akhir bulan Mulud 1840 bertepatan dengan 11 April 1910 Masehi dan 30 Robi'ul Awwal 1328 Hijriyah.
Berikut ini konversi kalender Jawa bulan Mulud 1840 ke kalender Masehi dan kalender Hijriyah untuk setiap tanggal.
| Jawa | Masehi | Hijriyah | Hari | Pasaran | Wuku |
|---|---|---|---|---|---|
| 1 Mulud 1840 | 13 Maret 1910 | 1 Robi'ul Awwal 1328 | Ahad | Kliwon | Tolu |
| 2 Mulud 1840 | 14 Maret 1910 | 2 Robi'ul Awwal 1328 | Senin | Legi | Tolu |
| 3 Mulud 1840 | 15 Maret 1910 | 3 Robi'ul Awwal 1328 | Selasa | Pahing | Tolu |
| 4 Mulud 1840 | 16 Maret 1910 | 4 Robi'ul Awwal 1328 | Rabu | Pon | Tolu |
| 5 Mulud 1840 | 17 Maret 1910 | 5 Robi'ul Awwal 1328 | Kamis | Wage | Tolu |
| 6 Mulud 1840 | 18 Maret 1910 | 6 Robi'ul Awwal 1328 | Jumat | Kliwon | Tolu |
| 7 Mulud 1840 | 19 Maret 1910 | 7 Robi'ul Awwal 1328 | Sabtu | Legi | Tolu |
| 8 Mulud 1840 | 20 Maret 1910 | 8 Robi'ul Awwal 1328 | Ahad | Pahing | Gumbreg |
| 9 Mulud 1840 | 21 Maret 1910 | 9 Robi'ul Awwal 1328 | Senin | Pon | Gumbreg |
| 10 Mulud 1840 | 22 Maret 1910 | 10 Robi'ul Awwal 1328 | Selasa | Wage | Gumbreg |
| 11 Mulud 1840 | 23 Maret 1910 | 11 Robi'ul Awwal 1328 | Rabu | Kliwon | Gumbreg |
| 12 Mulud 1840 | 24 Maret 1910 | 12 Robi'ul Awwal 1328 | Kamis | Legi | Gumbreg |
| 13 Mulud 1840 | 25 Maret 1910 | 13 Robi'ul Awwal 1328 | Jumat | Pahing | Gumbreg |
| 14 Mulud 1840 | 26 Maret 1910 | 14 Robi'ul Awwal 1328 | Sabtu | Pon | Gumbreg |
| 15 Mulud 1840 | 27 Maret 1910 | 15 Robi'ul Awwal 1328 | Ahad | Wage | Warigalit |
| 16 Mulud 1840 | 28 Maret 1910 | 16 Robi'ul Awwal 1328 | Senin | Kliwon | Warigalit |
| 17 Mulud 1840 | 29 Maret 1910 | 17 Robi'ul Awwal 1328 | Selasa | Legi | Warigalit |
| 18 Mulud 1840 | 30 Maret 1910 | 18 Robi'ul Awwal 1328 | Rabu | Pahing | Warigalit |
| 19 Mulud 1840 | 31 Maret 1910 | 19 Robi'ul Awwal 1328 | Kamis | Pon | Warigalit |
| 20 Mulud 1840 | 1 April 1910 | 20 Robi'ul Awwal 1328 | Jumat | Wage | Warigalit |
| 21 Mulud 1840 | 2 April 1910 | 21 Robi'ul Awwal 1328 | Sabtu | Kliwon | Warigalit |
| 22 Mulud 1840 | 3 April 1910 | 22 Robi'ul Awwal 1328 | Ahad | Legi | Warigagung |
| 23 Mulud 1840 | 4 April 1910 | 23 Robi'ul Awwal 1328 | Senin | Pahing | Warigagung |
| 24 Mulud 1840 | 5 April 1910 | 24 Robi'ul Awwal 1328 | Selasa | Pon | Warigagung |
| 25 Mulud 1840 | 6 April 1910 | 25 Robi'ul Awwal 1328 | Rabu | Wage | Warigagung |
| 26 Mulud 1840 | 7 April 1910 | 26 Robi'ul Awwal 1328 | Kamis | Kliwon | Warigagung |
| 27 Mulud 1840 | 8 April 1910 | 27 Robi'ul Awwal 1328 | Jumat | Legi | Warigagung |
| 28 Mulud 1840 | 9 April 1910 | 28 Robi'ul Awwal 1328 | Sabtu | Pahing | Warigagung |
| 29 Mulud 1840 | 10 April 1910 | 29 Robi'ul Awwal 1328 | Ahad | Pon | Julungwangi |
| 30 Mulud 1840 | 11 April 1910 | 30 Robi'ul Awwal 1328 | Senin | Wage | Julungwangi |