Cartes à émotions

Erreur de la base de données WordPress : [Incorrect DATETIME value: '2020-2-31 23:59:59']
SELECT MONTH(post_date) AS month, YEAR(post_date) AS year FROM pdc_posts WHERE post_date > '2020-2-31 23:59:59' AND post_type = 'post' AND post_status = 'publish' ORDER BY post_date ASC LIMIT 1

Erreur de la base de données WordPress : [Incorrect DATETIME value: '2020-2-31 23:59:59']
SELECT DISTINCT DAYOFMONTH(post_date) FROM pdc_posts WHERE post_date >= '2020-2-01 00:00:00' AND post_type = 'post' AND post_status = 'publish' AND post_date <= '2020-2-31 23:59:59'