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## How can calculate datetime difference hours and minutes in SQL Server?

**1 Answer**

- Declare @Date_2 DATETIME = ‘2020-04-30 10:01:10.022’
- Declare @Date_1 DATETIME = ‘2020-04-30 10:00:00.000’
- Select CONVERT (TIME, @Date_2 – @Date_1) as Elapsed_Time.

## How can calculate date and time difference in SQL?

To find the difference between dates, **use the DATEDIFF(datepart, startdate, enddate) function**. The datepart argument defines the part of the date/datetime in which you’d like to express the difference. Its value can be year , quarter , month , day , minute , etc.

## How many min are there in a day?

There are **24*60 minutes** in a day (ignoring the imperfections of the natural world, the Earth and Sun). So there are 24*60 valid 24 hour times (excluding seconds) on a digital clock.

## What is timestamp value?

The TIMESTAMP data type is **used for values that contain both date and time parts**. TIMESTAMP has a range of ‘1970-01-01 00:00:01’ UTC to ‘2038-01-19 03:14:07’ UTC. A DATETIME or TIMESTAMP value can include a trailing fractional seconds part in up to microseconds (6 digits) precision.

## Can you subtract dates in SQL?

The **DATEADD function** simply allows you to add or subtract the specified number of units of time to a specified date/time value.

## Does datediff include start and end?

The DATEDIFF function returns the INTEGER number of the specified datepart difference between the two specified dates. The **date range begins at startdate and ends at enddate.**

## How do I get current date in SQL?

To get the current date and time in SQL Server, **use the GETDATE() function**. This function returns a datetime data type; in other words, it contains both the date and the time, e.g. 2019-08-20 10:22:34 . (Note: This function doesn’t take any arguments, so you don’t have to put anything in the brackets.)

## How many minutes are 2 hours?

1. How many minutes in 2 hours? 2 × 60 = 120. The answer is **120 minutes**.

## How many hours is 1 hour?

There are **60 minutes in 1 hour**. To convert from minutes to hours, divide the number of minutes by 60. For example, 120 minutes equals 2 hours because 120/60=2.

## How minutes are in an hour?

Since there are **60 minutes** in one hour, that’s the conversion ratio used in the formula.

## How many minutes are there in 1 minutes?

In one minute **there is no minute**

In 1 minute there is 60 second. In 1 hour there is 60 minute.