RRSP slips from 2018 of Jan. 1 to Mar 1

There is no option on the RRSP only from Mar. 1 - Dec. and  Jan 1 to Mar 1, 2019, for the 60 days. How do I put the rrsp from 2018 of Jan. 1 to Mar 1.?

Seniors and students

RRSP contributions don't follow a calendar year for tax purposes. If you have RRSP contributions made in the first 60 days of the following tax year, those contributions are entered on the previous year's tax return. In essence, those RRSP contributions should have been included in last year's tax return.

Not to worry. You can still claim the contributions. You'll just need to file an adjustment.

https://turbotax.community.intuit.ca/replies/2647992