You use the Calculated field to specify the number of days (30 days) from the base date for date calculation. By doing so, you can get the date that is a month from that base date.
This is useful when you need to calculate dates such as a trial end date and a contract expiration date.

In kintone, the values in the date, time, and date and time fields are treated as UNIX time. That means the dates and the times are treated in seconds. Therefore, you need to specify your formula in seconds as well. For example, you need to enter "60" to specify one minute, and "3600" or "60*60" to specify one hour.

Place the Date field and the Calculated field and set them.

Setting the Date Field
Set a field code.
In this example, specify "Date" for the field code.

Setting the Calculated Field
You set the formula as follows.

• Formula: Date+(60*60*24*30)
• Display format: Date (Example: 2012-08-06)

* The number ("30") you specify in the formula varies depending on the number of days from the base date for date calculation.