SQL server, Converting Seconds to Minutes, Hours, Days

Depending on the output you want:

DECLARE @s INT = 139905;

SELECT                CONVERT(VARCHAR(12), @s /60/60/24) + ' Day(s), ' 
  +                   CONVERT(VARCHAR(12), @s /60/60 % 24) 
  + ':' + RIGHT('0' + CONVERT(VARCHAR(2),  @s /60 % 60), 2) 
  + ':' + RIGHT('0' + CONVERT(VARCHAR(2),  @s % 60), 2);

Result:

1 Day(s), 14:51:45

Or:

DECLARE @s INT = 139905;

SELECT 
    CONVERT(VARCHAR(12), @s /60/60/24)   + ' Day(s), ' 
  + CONVERT(VARCHAR(12), @s /60/60 % 24) + ' Hour(s), '
  + CONVERT(VARCHAR(2),  @s /60 % 60)    + ' Minute(s), ' 
  + CONVERT(VARCHAR(2),  @s % 60)        + ' Second(s).';

Result:

1 Day(s), 14 Hour(s), 51 Minute(s), 45 Second(s).

You can replace 60/60/24 with 86400 etc. but I find it better self-documenting if you leave in the /seconds/minutes/hours calculations. And if you are going against a table, just use column_name in place of @s.

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