MySQL TO_DAYS Function: User Guide

The to_days function in MySQL is used to convert a date into a numeric representation of the day. Its syntax is as follows:

Convert the date to the number of days.

date is a valid date expression, which can be a date value, date literal, or a string representing a date value.

The TO_DAYS function returns the number of days from January 1st, year 0 to the specified date. It’s important to note that this number of days starts from 1, not from 0.

Here are some examples:

Check the number of days since ‘2022-01-01’ to the present date.

Return the number of days since a certain date.

What is the result of converting the date ‘2022-12-31’ into number of days since year 0000?
– It returns 738553.

Return the number of days of the current date.

The to_days function can be used for comparing and calculating dates. For example, it can be used to calculate the difference in days between two dates.

Return the difference in days between December 31, 2022 and January 1, 2022. – 355 days.

You can use the to_days function to calculate the number of days between a date and the current date:

Return the number of days between the current date and a specific date.

Please note that the TO_DAYS function only handles dates and does not include time. If you need to convert both date and time to days, you can use the DATEDIFF function.