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How many days are there from June 18 to June 18, 2022?

1464 days, and the general calculation date is "start, not end". The calculation is as follows:

(2018.6.16 ~ 2019.6.15) days+(2019.6.16 ~ 2020 .. 15) days +(202 1. 6。 16+2022。 6。 15