If you have a preference for the time format that you receive your Roster in via SMS or Email, you can set this on your profile in Tanda.
If you don't have access to My Tanda, you can ask your Manager or send them to the following article.
Then once you're logged in, click on the Profile icon in the top right corner and select My Profile:
On the right, you can click to select which time preference you want to apply. The box with blue denotes the applied option, so in this case 24 hour time:
This will automatically update, so any times that you see within your My Tanda account, i.e Timesheets and Rosters and the next time you receive your Roster from your Manager by Email or SMS, this will have your update time preference.
If you need any assistance with Tanda, just speak with your Manager first and they can escalate to Tanda Support should they need to.