Sqlite does not support natively the storage of a time data type. It lets you choose between text and number (see date and time datatype in Sqlite. ie
By default, tabulify has chosen to save the date in the text (ie SqlLiteral) format because:
You can control this behavior by setting the time configuration built-in attributes
With tabulify, by default, you would be able to manipulate them with the Sqlite Date Time function like that:
SELECT date('2020-10-15','-1 day')
-- or
SELECT date(dateColumn,'-1 day') from table;
SELECT datetime('2020-10-15 16:34:56.607','-1 seconds')
-- or
SELECT datetime(timestampColumn,'-1 seconds') from table;
SELECT time('22:10:23','+1 seconds')
-- or
SELECT time(timeColumn,'+1 seconds') from table;