On Pressing F2:Date, the current date can be changed in Tally.
Click F2:Date to change the current date, the Change Current Date screen appears as shown below:
This is useful when a user wants to,
1. Record a predated dated or postdated voucher entry.
2. Alter a voucher's date.
Note: the current date cannot be later than the financial year ending date or earlier than the financial year beginning date.