Sonoran Desert Institute

Contact an SDI Department—We're happy to help!

For assistance, please email the appropriate department:

Question Type Department Email
Billing, Payment Plan, Tuition Balance, Payment Processing Financial Services:
Scheduling, Grading, Academic Progress, Transcript Requests Student Services:
Instruction, Moodle Questions, Absorb Questions, Test Grades SDI Faculty:
Shipping, Course Resources, Tools and Materials SDI Shipping:
Enrolling in Another SDI Program or Course, or General Program Info Admissions:

Sonoran Desert Institute is open throughout the year during the Institute’s regular business hours. During those times SDI is open for enrollment of new students and servicing existing students and alumni.


In order to allow SDI faculty and staff time to spend with their families, the Institute observes the following holidays*:

  • New Year’s Day
  • Martin Luther King Day
  • President’s Day (Washington’s Birthday)
  • Memorial Day
  • Independence Day
  • Labor Day
  • Columbus Day
  • Veterans’ Day
  • Thanksgiving
  • Thanksgiving Friday
  • Christmas Eve
  • Christmas Day

* The actual date of some holidays varies from year to year or may fall on a weekend. At those times, SDI will align with the Federal observance.

Office Hours

It is SDI’s intent to provide prompt, efficient service when students telephone the Institute. Regular business hours are:

Mon-Thus: 8:30 a.m. – 5:00 p.m. (MST)
Friday: 8:30 a.m. – noon (MST)