In this tutorial, I will explain about how to make time converter. The time converter converts the most common time units, second, hour, minute, day, week, month, year and century. Second is the SI base unit of time and officially defined as the duration of 9 192 631 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom.

We have an integer number which represents seconds (secs) part of the time. We need to convert this integer number into year, month, days, hour, minute and second parts. Let me explain with the help of the examples to make it clear.

Examples:

100 Seconds – 0 year(s) 0 month(s) 0 day(s) 0 hour(s) 1 minute(s) 40 second(s)

3600 Seconds – 0 year(s) 0 month(s) 0 day(s) 1 hour(s) 0 minute(s) 0 second(s)

86400 Seconds – 0 year(s) 0 month(s) 1 day(s) 0 hour(s) 0 minute(s) 0 second(s)

2678400 Seconds – 0 year(s) 1 month(s) 0 day(s) 0 hour(s) 0 minute(s) 0 second(s)

35110011 Seconds – 1 year(s) 1 month(s) 10 day(s) 8 hour(s) 46 minute(s) 51 second(s)

etc.

## Convert number into year, month, day, hour, minute and second

Below is the code to convert the input integer number into year, month, day, hour, minute and second as above:

DECLARE @VARDT DATETIME = DATEADD(SECOND, 35110011, 0)
SELECT CAST(DATEPART(YEAR, @VARDT) - 1900 AS VARCHAR(10)) + ' year(s) ' + CAST(DATEPART(MONTH, @VARDT) - 1 AS VARCHAR(2)) + ' month(s) '
+ CAST(DATEPART(DD, @VARDT) - 1 AS VARCHAR(2)) + ' day(s) ' + CAST(DATEPART(HOUR, @VARDT) AS VARCHAR(2)) + ' hour(s) '
+ CAST(DATEPART(MINUTE, @VARDT) AS VARCHAR(2)) + ' minute(s) ' + CAST(DATEPART(SECOND, @VARDT) AS VARCHAR(2)) + ' second(s)'

Or, we can use the below code.

DECLARE @VARDT DATETIME = DATEADD(SECOND, 35110011, 0)
SELECT CAST(DATEDIFF(YEAR, 0, @VARDT) AS VARCHAR(10)) + ' year(s) ' + CAST(DATEPART(MONTH, @VARDT) - 1 AS VARCHAR(2)) + ' month(s) '
+ CAST(DATEPART(DD, @VARDT) - 1 AS VARCHAR(2)) + ' day(s) ' + CAST(DATEPART(HOUR, @VARDT) AS VARCHAR(2)) + ' hour(s) '
+ CAST(DATEPART(MINUTE, @VARDT) AS VARCHAR(2)) + ' minute(s) ' + CAST(DATEPART(SECOND, @VARDT) AS VARCHAR(2)) + ' second(s)'

I have added the given integer value in second part of the default datetime value (‘1900-01-01 00:00:00.000’) of SQL Server to generate a datetime value. Once we have a datetime data type, we can easily apply the DATEPART function to extract the required parts from that. In this scenario SQL Server automatically takes care of the date time conversions. Finally, I have subtracted the respective date time parts from the generated datetime data type value from their respective parts in the final SELECT statement wherever required.

In second logic, I have just used a DATEDIFF function for the first step computation which can take care of all the conversions specially in below scenarios smoothly. For example, we don’t need to worry about to year to month, month to day and day to hour conversion. We just need to use DATEDIFF function for the first part.

## Convert number into month, day, hour, minute and second

SELECT CAST((DATEDIFF(MONTH, 0, @VARDT)) AS VARCHAR(10)) + ' month(s) '
+ CAST(DATEPART(DD, @VARDT) - 1 AS VARCHAR(2)) + ' day(s) ' + CAST(DATEPART(HOUR, @VARDT) AS VARCHAR(2)) + ' hour(s) '
+ CAST(DATEPART(MINUTE, @VARDT) AS VARCHAR(2)) + ' minute(s) ' + CAST(DATEPART(SECOND, @VARDT) AS VARCHAR(2)) + ' second(s)'

Output:

13 month(s) 10 day(s) 8 hour(s) 46 minute(s) 51 second(s)

## Convert number into day, hour, minute and second

SELECT CAST((DATEDIFF(DD, 0, @VARDT)) AS VARCHAR(10)) + ' day(s) '
+ CAST(DATEPART(HOUR, @VARDT) AS VARCHAR(2)) + ' hour(s) '
+ CAST(DATEPART(MINUTE, @VARDT) AS VARCHAR(2)) + ' minute(s) ' + CAST(DATEPART(SECOND, @VARDT) AS VARCHAR(2)) + ' second(s)'

Output:

406 day(s) 8 hour(s) 46 minute(s) 51 second(s)

## Convert number into hour, minute and second

SELECT CAST(DATEDIFF(HOUR, 0, @VARDT) AS VARCHAR(20)) + ' hour(s) '
+ CAST(DATEPART(MINUTE, @VARDT) AS VARCHAR(2)) + ' minute(s) ' + CAST(DATEPART(SECOND, @VARDT) AS VARCHAR(2)) + ' second(s)'

Output:

9752 hour(s) 46 minute(s) 51 second(s)

## Convert number into minute and second

SELECT CAST(DATEDIFF(MINUTE, 0, @VARDT) AS VARCHAR(25)) + ' minute(s) ' + CAST(DATEPART(SECOND, @VARDT) AS VARCHAR(2)) + ' second(s)'

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