While Laylatul Qadr is any odd night in the last 10 days of Ramadan, many scholars believe that it is the night of the 27th. For people who started their fasts on Thursday 17th May, it will be tonight.
Aisha, may Allah be pleased with her, said: I asked the Messenger of Allah: 'O Messenger of Allah, if I know what night is the night of Qadr, what should I say during it?' He said:
'Say: O Allah, You are Oft-Pardoning and You love to pardon, so pardon me.'"
[Ahmad, Ibn Majah, and at-Tirmidhi].
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