org-read-date-prefer-future

org-read-date-prefer-future is a variable defined in `org.el'.
Its value is

t

Documentation:
Non-nil means assume future for incomplete date input from user.
This affects the following situations:
1. The user gives a month but not a year.
For example, if it is April and you enter "feb 2", this will be read
as Feb 2, *next* year. "May 5", however, will be this year.
2. The user gives a day, but no month.
For example, if today is the 15th, and you enter "3", Org-mode will
read this as the third of *next* month. However, if you enter "17",
it will be considered as *this* month.

If you set this variable to the symbol `time', then also the following
will work:

3. If the user gives a time.
If the time is before now, it will be interpreted as tomorrow.

Currently none of this works for ISO week specifications.

When this option is nil, the current day, month and year will always be
used as defaults.

See also `org-agenda-jump-prefer-future'.

You can customize this variable.