Which calender system is Islamic?

Re: Which calender system is Islamic?

The word 'shahr' is used in quraan 12 times in various verses (another example of numerical balance in Quraan). On all the places it is used in the meaning of month. (refer: Sura Al-baqara verses 185,194,217 Sura Al-maida 2,97, Sura Tauba 36, Sura Saba 15, Sura Qadr 1) So just tell me why should we leave aside the meanings which were repeatedly used for that word and opt for a totally irrelevant meaning?

Iltemase dua