Rabiʽ al-Thani (Arabic: رَبِيع ٱلثَّانِي, romanized: Rabīʿ ath-Thānī, lit.

'The final Rabi'), Rabiʽ al-Akhir (Arabic: رَبِيع ٱلْآخِر, romanized: Rabīʿ al-ʾĀkhir), or Rabi' II is the fourth month of the Islamic calendar.

The name Rabī' al-Thani means "the second spring" in Arabic, referring to its position in the pre-Islamic Arabian calendar.

As the Islamic calendar is a purely lunar calendar, the month naturally rotates over solar years, so Rabīʽ al-Thani can fall in spring or any other season.

The estimated start and end dates for Rabī' al-Thānī are as follows (based on the Umm al-Qura calendar of Saudi Arabia[4]):