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Diapharma’s regular business hours:

  • Monday through Thursday, 8am to 5pm Eastern Standard Time with limited phone support available until 8pm
  • Friday, 8am to 1pm Eastern Standard Time with limited phone support available until 5pm

Diapharma’s “summer hours”:

  • Monday through Thursday, 8am to 5pm Eastern Standard Time with limited phone support available until 8pm
  • Friday, off, June, July and August

Holiday Schedule