Rabi al-thani
Rabī’ al-Thānī (Arabic: ربيع الثاني, also transliterated Rabīʿ al-Ṯānī, IPA: [raˈbiːʕ æθˈθæːniː]) is the fourth month in the Islamic calendar. It is also known as Rabī’ al-Ākhir (ربيع الآخر IPA: [raˈbiːʕ ˈʔæːxɪr]).
The Islamic calendar is a lunar calendar, and months begin when the first crescent of a new moon is sighted. Since the Islamic lunar calendar year is 11 to 12 days shorter than the tropical year, Rabī' al-Thānī migrates throughout the seasons. The estimated start and end dates for Rabī' al-Thānī are as follows (based on the Umm al-Qura calendar of Saudi Arabia):
There will be an Ayah (sign) in (the month of) Ramadan. Then, there will 'isabah (splitting into groups) in Shawwal. Then, there will be fighting in (the month of) Dhu al-Qi'dah. Then, the pilgrim will be robbed in (the month of) Dhu al-Hijjah. Then, the prohibitions will be violated in (the month of) al-Muharram. Then, there will be sound in (the month of) Safar, then the tribes will conflict with each other in the two months of Rabi' al-awwal & Rabi' al-thani. Then, the most amazing thing will happen between (the months of) and Rajab. Then, a well-fed she-camel will be better than a fortress (castle) sheltering a thousand (people).
...
Wikipedia