Hey here is something you can use to adjust the time on your T7206.To Change the Time:
1. Press the CHANGE softkey Display will read: "Hour:
2. Press the CHANGE softkey Display will read: "Hour: _ "
3. Enter the new HOUR. (in 24-hour format - Ex.: 5:00pm = 17:00. Display will then read the new Hour programmed.
4. Press NEXT Display will read: "Minutes: # # "
5. Press the CHANGE softkey Display will read: "Minutes": _ "
6. Enter the new MINUTES.
To Change the Date:
1. Press NEXT Display will read: "Date DD MM YY"
2. Press the CHANGE softkey Display will read: "Year: # # "
3. Press the CHANGE softkey, (If the year is incorrect) Display will read: "Year: _ "
4. Enter the new YEAR Display will then read the new Year programmed.
5. Press NEXT Display will read: "Month: # # "
6. Press the CHANGE softkey, (If the month is incorrect) Display will read: "Month: _ "
7. Enter the new MONTH Display will then read the new Month programmed
8. Press NEXT Display will read: "Month: # # "
9. Press the CHANGE softkey, (If the day is incorrect) Display will read: "Day: _ "
10. Enter the new DAY Display will then read the new Day programmed

Let me know how that turns out and good luck