The Somali calendar, ()، (سومَلي تِرو امّين) which is a lunar calendar-and-solar calendar-based system, was used by Somalis herders and farmers to determine the seasons and predict the weather. The Somali lunar calendar is known as dayax-tiriska (دَيَح تِرِسكَه) and the sun-based calendar is called amin-tiris (اَمين تِرِس) or shin-tiris (شِن تِرِس).
+ Indigenous Week of Rendille |
| Hahat (هَهَت) |
| Orra hakhan (اُورَّه هَخَن) |
| Sere (سِرِه) |
| The fourth day of the week | Kumat (كُمَت) |
| The fifth day of the week | Sere hakhan (سِرِه هَخَن) |
| The sixth day of the week | Sere adhi ( the day of sheep and goats ) (سِرِه اَطي) |
| The seventh day of the week | Sere gaal (the day of camel) (سِرِه غَال) |
+ The Months and Seasons of the Somali Calendar |
|
| 30 | Habis/Karan 1 | July 20 |
| Hala-lood/Habar-ari ( هَبَر اَري/هَلَه لود | 30 | Hala-loodHabar-ari 1 | August 20 |
| 30 | Diraacgood 1 | September 19 |
| 31 | Dayrweyn/Dambesame 1 | October, 19 |
| Xoomir/Ximir (حومِر/حِمِر) | 30 | Xoomir/Ximir 1 | November 19 |
| Xays (حَيس) | 31 | Xays 1 | December 19 |
| Diraac, 13 weeks | Aminla'/Lixkor (اَمين لهً/لِحكور | 31 | Aminla'/Lixkor 1 | January 18 |
| Adhi-caseeye (اَطي عَسِيَه) | 30 | Adhi-caseeye 1 | February 18 |
| Daydo (دَيدو) | 30 | Daydo 1 | March 20 |
| Gu’, 13 weeks + 1 | Fushade/Seer-ma-waydo (فُشَدِه/سِير مَه وَيدو) | 31 | Fushade/Seer-ma-waydo 1 | April 19 |
| Cawl/Gu’soore (عَول/غُه سوره) | 30 | Cawl/Gu'soore 1 | May 20 |
| Dirir-Sagaalo (دِرِر سَغَالو) | 31 | Dirir-sagaalo 1 | June 19 |
