Eid Ul Fitr Salat - Namaz Salah Salaat Timing
The time window that Salat al Eid can be performed begins when sun reaches approximately two meters above the horizon. The time window finishes when sun reaches its meridian before Dhuhr. Adhering to the Sunnah, the time for Eid al Fitr prayer is delayed and Eid al Adha prayer is hastened, so as to facilitate distribution of Fitrah before the Eid al Fitr prayer and offer sacrifice after the Eid al Adha prayer.
I would encourage you to give you Zaqat Ul Fith as soon as possible so that the collectors of zaqat have time to distribute, and/or make their plans.
Even if you were to give it to a particular person who is in need, do not wait until on Eid day because that person may need the money to plan for his or her Eid.