LetterStream Hours Of Operation

Getting Started

This article outlines LetterStream's business hours, holiday closures, and how you can continue to place orders and access support online at any time.


In This Article


Regular Business Hours

Monday – Friday

  • 9:00 AM to 5:00 PM (Arizona Mountain Standard Time)
  • In person by appointment only – Please email us ahead of time and book a time if you would like to discuss visiting during normal hours.

Saturday & Sunday

  • Closed

Holiday Closures

LetterStream processes orders every weekday except on the following holidays:

  • New Year’s Day
  • Memorial Day
  • Independence Day
  • Labor Day
  • Thanksgiving Day
  • Christmas Day

For exact dates and USPS holiday observances, be sure to check the postal holiday schedule on our website.

Note: LetterStream is open on some USPS postal holidays, so mail processing may still occur even when the post office is closed.


Placing Orders Online

As an SaaS cloud-based service, LetterStream offers:

  • Order placement through our website 24 hours a day, 365 days per year
  • Access to our AI webchat tool at any time, 24 hours a day, 365 days per year

This makes it easy to manage your mailings whenever it’s convenient for you—even outside of standard business hours.


LetterStream Timezone

Our facilities are located in Arizona, which is in the Mountain Time Zone (MT), but we have a unique twist!

Key Details:

  • Standard Time: Arizona follows Mountain Standard Time (MST) year-round, which is UTC−7.
  • No Daylight Saving Time: However, most of Arizona (including LetterStream locations) does not observe Daylight Saving Time (DST). So, unlike other Mountain Time areas, we do not switch to MDT (UTC−6) in the summer.

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