|Your specific volunteer shift times are found in your portal, linked here: https://img.rosterfy.co/portal. You can also see what discounted volunteer ticket you will earn after you complete your shift in the role description on the application form.
However, in general:
Half-day Shift = 5 - 7 hours and you can run a Tough Mudder Classic for $40 or TM 5km for $20.
Full-day Shift = 8 - 12 hours and you can run a Tough Mudder for FREE!