Convert a 12 Hour Format to 24 Hour Format in SQL Server

Convert a 12 hour format to 24 hour format in sql server

Try this:

First convert varchar date to datetime and then you can manipulate it in the way you want as:

-- CONVERT TO DATETIME TO GET 24HR FORMAT
SELECT CONVERT(DATETIME, '10/1/2013 6:39:04 PM', 0)
-- Concatenate in required format
SELECT CONVERT(VARCHAR(10), CONVERT(DATETIME, '10/1/2013 6:39:04 PM', 0), 101)
+ ' '+ CONVERT(VARCHAR(5),CONVERT(DATETIME, '10/1/2013 6:39:04 PM', 0), 108)

Query to Convert a specific 12 hour format type to 24 hour format type in sql server 2016

Assuming that the format is M/d/yy h:mmA (or P) then I would use the style code 22, which is for mm/dd/yy hh:mi:ss AM (or PM), so that this works regardless of language setting:

SELECT CONVERT(datetime2(0),V.YourDate + 'M',22)
FROM (VALUES('3/2/20 3:30P'))V(YourDate);

SQL Automatically converts 24 hour format time to 12 hour format

hh gives you 12 hour hours
HH gives you 24 hour hours

Also, mi is probably a typo, as it will return you a minute, followed by the letter i. Try this:

declare @datetime datetime = '2017-08-29 16:30:01'
select Format(@datetime,'dd/MM/yyyy HH:mm:ss') as SlotStartTime

You can find all valid datetime formatting characters here: https://docs.microsoft.com/en-us/dotnet/standard/base-types/custom-date-and-time-format-strings

Converting a Time to 24 hour time in SQL Server

CONVERT(char(5), GETDATE(), 108)

Convert 12 hours to 24 hours from varchar column in SQL Server

This should work:

select convert(time, stuff(meeting_time, 6,  1, ' '))

Not sure if it works with all locales / languages, so you should check that first.

This assumes that your date is always in the same format, that the extra : is in the 6th character.

Converting a time into 12 hour format in SQL

Do you have the current time in a variable/column of type time? If so, it's easy:

declare @t time
set @t = '14:40'

select CONVERT(varchar(15),@t,100)

result:

2:40PM

If it's in a datetime(2) variable, then you'll have to strip out the date portion after running the CONVERT. If it's in a string, then first CONVERT it to time, then use the above code.

Difficult SQL Server Query - Converting 12-to-24 hour time

Just use SQL

SELECT CaptureDate
,CaptureTime
,left(convert(varchar, CONVERT(DATETIME, CaptureTime, 102), 24),5) as t24
FROM [StackOver].[dbo].[Convert12to24hourtime]

CaptureDate CaptureTime t24
2019-05-20 12:00:00.000 07:55 07:55
2019-06-22 00:00:00.000 08:43 AM 08:43
2019-06-22 12:00:00.000 08:51 am 08:51
2019-06-28 00:00:00.000 12:07 PM 12:07


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