Leggo da qui:

http://www.sqlite.org/datatype3.html

1.2 Date and Time Datatype

SQLite does not have a storage class set aside for storing dates and/or times. Instead, the built-in Date And Time Functions of SQLite are capable of storing dates and times as TEXT, REAL, or INTEGER values:

TEXT as ISO8601 strings ("YYYY-MM-DD HH:MM:SS.SSS").
REAL as Julian day numbers, the number of days since noon in Greenwich on November 24, 4714 B.C. according to the proleptic Gregorian calendar.
INTEGER as Unix Time, the number of seconds since 1970-01-01 00:00:00 UTC.
Applications can chose to store dates and times in any of these formats and freely convert between formats using the built-in date and time functions.
quindi mi pare di capire che non troverai un tipo DATE, DATETIME, TIMESTAMP come in MySQL o simili, ma che puoi salvare il dato in formato testuale (o intero o come ti pare, purché ammesso) e sfruttare le funzioni messe a disposizione per fare quelle che devi fare - dovessero servire.