When should I expect my Fed Tax Refund That Was Mailed Out on Feb 29?

My tax refund was mailed out on Feb 29,from Fresno California, and I live in Burbank California. When should I expect my tax refund. On the “Where’s my Refund” site it just confirms that my check has been mailed out, and the amount of the check.Did anyone else get their check yet that was mailed out on the Feb 29?Please do not respond if you had your check direct deposited.Cindy