2-3 hours first time ..... Normally 1 1/2 -2 next visit
Depending on how busy it is least 3 hrs. You have to do alot before you actually donate.
Depends on many things. How many first timers are there. For your part avoid caffeine day of and limit a day before. Drink lots of water and make sure you have your mail. Allow three hours total , with luck it will only take you 90 minutes
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