Get Difference in Days, Hours, Minutes and Seconds Between Two Dates in Sql Server.

Introduction: In this article I am going to share how to calculate exact day, hour, minute and second difference between two specific dates.

In previous articles i explained How to Add or subtract days, weeks, months, quarters and years in/from date and Multiple sql server queries to get all dates between two dates and 

Query to get first, last date and total days in year or month  and Delete records from table using inner join in sql server and Get day,month and year from current or any date

Description: While working on project I got the requirement to show user his last login time on his dashboard whenever he/she log in to website. Format required was as shown in image. There may be many other cases when similar option is required. So I have shared this so that it might be helpful to others if required.

Implementation: Let’s take an example to get what we need.

If you simply want the difference between last login and current date in days, hours, minutes and seconds separately then below query will help you.

DECLARE @LoginDate DATETIME='2016-09-10 14:45:55', @CurrentDate DATETIME=GETDATE();

SELECT @CurrentDate AS CurrentDate,@LoginDate AS LastLoginDate ,

DATEDIFF(SECOND, @LoginDate, @CurrentDate) / 60 / 60 / 24 AS TotalDays,

DATEDIFF(SECOND, @LoginDate, @CurrentDate) / 60 / 60 % 24 AS TotalHours,

DATEDIFF(SECOND, @LoginDate, @CurrentDate) / 60 % 60 AS TotalMinutes,

DATEDIFF(SECOND, @LoginDate, @CurrentDate) % 60 AS TotalSeconds

Output will be: 

CurrentDate	LastLoginDate	TotalDays	TotalHours	TotalMinutes	TotalSeconds
2016-10-10 22:01:14.123	2016-09-10 14:45:55.000	30	7	15	19

To get the difference between last login and current date in the format as shown below output.

DECLARE @LoginDate DATETIME='2016-09-10 14:45:55', @CurrentDate DATETIME=GETDATE();

SELECT @CurrentDate AS CurrentDate, CAST(DATEDIFF(SECOND, @LoginDate, @CurrentDate) / 60 / 60 / 24 AS NVARCHAR(30)) + ' days, '

+ CAST(DATEDIFF(SECOND, @LoginDate, @CurrentDate) / 60 / 60 % 24 AS NVARCHAR(30)) + ' hours, '

+ CAST(DATEDIFF(SECOND, @LoginDate, @CurrentDate) / 60 % 60 AS NVARCHAR(30)) + ' minutes and '

+ CAST(DATEDIFF(SECOND, @LoginDate, @CurrentDate) % 60 AS NVARCHAR(30)) + ' seconds ago.' AS LastLogin

Output will be:

CurrentDate	LastLogin
2016-10-10 22:01:14.123	30 days, 7 hours, 15 minutes and 19 seconds ago.

Now over to you:

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