Halton District School Board
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For Support with your OneList Application:

 

For Assistance with the OneHSN site, contact OneHSN Support at:

Email: For assistance or information please e-mail us at: Support@OneHSN.com

Hours of Operation: Monday to Friday - 8:00 am to 5:00 pm (EST)

 

Halton District School Board 

Phone: (905) 335 - 3663 ext 3260 
 
 
 
Hours of Operation: Monday to Friday, 8:30 am to 4:30 pm (EST)

OneHSN Support’s schedule during the Holiday Season is as follows:

  • December 25 - Closed
  • December 26 - Closed 
  • December 29, 30 and 31 – 8am to 5pm
  • January 1 – Closed - New Years

Our team will respond to your request during the above posted business hours. We wish you all a safe and happy holiday season.
Session: befb37e0-6fb0-49a1-aeb3-f001edfac93f
Request: 0189f649-9a4f-45c2-b210-3847bcd3b96f
Timestamp: 12/15/2025 6:20:24 PM +00:00
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