:salam2:
We have different of calendars. For Example:
January / Sulh (peace) / Fravašinąm (Guardian spirits, souls of the righteous)
February / Tabligh (preaching) / Ašahe Vahištahe “Best Truth” / “Best Righteousness”
March / Aman (protection) / Haurvatātō “Wholeness” / “Perfection”
April / Shahadat (martyrdom) / Tištryehe “Sirius”
May / Hijrat (Migration) / Amərətātō “Immortality”
June / Ehsan (benevolence) / Xšaθrahe Vairyehe “Desirable Dominion”
July / Wafa (loyalty) / Miθrahe “Covenant”
August / Zahoor (appearance) / Apąm “Waters”
September / Ikha (brotherhood) / Āθrō “Fire”
October / Tabook (battle of Tabouk) / Daθušō “The Creator”
November / Nabuwat (prophethood) / Vaŋhə̄uš Manaŋhō “Good Mind”
December / Fatah (victory) / Spəntayā̊ Ārmatōiš “Holy Devotion”
What I would like to ask here that why we have different calendars? Is it represent a specific group of peoples, religions, beliefs, races, languages etc? Or merely used as a translation purpose to their native language?
Share your answer/views, please 
Re: Calendar
In which calendar january is Sulh (peace)? It seems that particular calendar is inspired from Persian and Sanskrit.
Re: Calendar
Sulh (peace) belongs to the calendar of either Persians or Afghanis
Re: Calendar
What do you mean? All these months relates to different calendars? 
Re: Calendar
I guess yes. That is why I asked in my first post whether it is belongs to a specific groups, religions, beliefs etc.,
or
maybe it is used as different language as a translation but why they need translation 
Re: Calendar
Where did you find all this information?
Re: Calendar
Interesting. Never knew that Ahmadi community got a separate calendar like Bohri community. Probably they don’t use it in practical life.
Mirza Basheer-ud-Din Mahmood Ahmad - Wikipedia, the free encyclopediaThe Hijri/Shamsi calendar The Gregorian Calendar is based on the solar movements and starts with the birth of Jesus, while the Hijri (Islamic) calendar is based on lunar movements and starts with the migration of Muhammad form Mecca to Medina, which occurred in 622.
In 1940 under the directives and supervision of Mahmood Ahmad, after much research and calculations, a new calendar was worked out, the Hijri/Shamsi (solar/Hegira) calendar. Although this calendar is based on solar calculations, however it starts form the migration of Muhammad instead of the birth of Jesus. According to this method 2008 CE corresponds to 1387 Hijri/Shamsi, i.e. 1,387 years have passed since the migration of Muhammmad from Mecca to Medina. The number and time frame of each month of this calendar is the same as the Christian calendar (the lunar month being shorter by some days than the solar one).[SUP][29]](Mirza Basheer-ud-Din Mahmood Ahmad - Wikipedia)[/SUP] Each month of the Solar/Hegira calendar is based on an important event of early Islamic History:
- Sulh (peace): January
- Tabligh (preaching): February
- Aman (protection): March
- Shahadat (martyrdom): April
- Hijrat (Migration): May
- Ehsan (benevolence): June
- Wafa (loyalty): July
- Zahoor (appearance): August
- Ikha (brotherhood): September
- Tabook (battle of Tabouk): October
- Nabuwat (prophethood) November
- Fatah (victory): December
Re: Calendar
See like Gregorian Calender starts with the birth of Jesus, Why the Muslims required to have another calendar when they already have Islamic Calendar 
That is why I’m asking if it represents some different groups, or else? 