Find Databse Names on which FULL BACKUP got failed on a particular day. 

I got a scenario where my manager askeed me to find out databse names on which 
FULL BACKUP got failed on a particular days. Date and Times are mentioned below. Every week 
full backups on sunday at 10:00PM
/*
Finding
out database name which are not happening on 
a
particular day and time, in my scenario FULL backups are happeniNG 
at
10:00PM
*/
SELECT DISTINCT DATABASE_NAME+', '
FROM msdb.dbo.backupset
WHERE DATABASE_NAME NOT IN(
SELECT DATABASE_NAME
FROM msdb.dbo.backupset
where year(backup_start_date)=2020
and month(backup_start_date)=5
and day(backup_start_date)in (29,30)
and type='D'
AND CONVERT(VARCHAR(10), CAST(getdate() AS TIME), 0)>'10:00PM')


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