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DECLARE @tagtable TABLE (tag varchar(10),[start] time,[end] time) DECLARE @datetimestable TABLE ([timestamp] datetime) Insert Into @tagtable (tag, [start], [end]) values ('tag1','04:00:00.0000000','11:59:59.9999999'), ('tag2','12:00:00.0000000','19:59:59.9999999'), ('tag3','20:00:00.0000000','03:59:59.9999999'); Insert Into @datetimestable ([timestamp]) values ('2022-07-24T23:05:23.120'), ('2022-07-27T13:24:40.650'), ('2022-07-26T09:00:00.000'); ;WITH splitTimes AS ( SELECT CAST(timestamp AS DATE) as D, CAST(timestamp AS TIME) AS T FROM @datetimestable ) SELECT DATEADD( day, CASE WHEN b.[end]<b.start THEN 1 ELSE 0 END, a.D) as timestamp, b.[tag] FROM [splitTimes] a INNER JOIN @tagtable b ON a.T between b.[start] and b.[end] OR (b.[end]<b.start AND (a.T BETWEEN b.[start] AND '23:59:59.99999' OR a.T BETWEEN '00:00:00' AND b.[end]))
timestamp
tag
2022-07-26
tag1
2022-07-27
tag2
2022-07-25
tag3