SQLite does not have a storage class set aside for storing dates and/or times. Instead, the built-in Date and Time Functions in 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 choose to store dates and times in any of these formats and freely convert between formats using the built-in date and time functions.
- From Docs
Extensions
See extensions in SQLite. Consider SQLean’s time extension.
Date and Time Functions in SQLite
See docs: Date And Time Functions
Storing dates as TEXT
- TEXT as ISO8601 strings (“YYYY-MM-DD HH:MM:SS.SSS”).
Storing dates as REAL
- 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.
Storing dates as INTEGER
- INTEGER as Unix Time, the number of seconds since 1970-01-01 00:00:00 UTC.
Dates can be stored as UNIX time.