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Diapharma’s regular business hours:

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

Diapharma’s “summer hours”:

  • Monday through Thursday, 8am to 5pm EDT with limited phone support available until 8pm
  • Friday, off, May 29th, all June-July-and-August, September 4th

Holiday Schedule