This year Navrathri starts on 17th October. Amavasai is on Friday 16th October, which is considered auspicious day for arranging dolls ( Golu) and for Kalasa Staapana.
Navarathiri Puja starts on 17th, Saturday, that being Pradamai thithi and continues till Sunday, 25 the October Navami. Vijaya Dasami is on 26 the October.
Please click the link below and view the spreadsheet giving 10 day chart, in a tabular form the nine different ways to worship THE MOTHER in nine forms.
NOTE: The above chart is as per IST.