Daypart calculations for new column

[juju]

I am looking to create a new column in my dataset that classifies time between 9am and 5pm into one bucket ( say "business hours")  and 5pm to 8 am as "after hours". I have a [TIME] column on which this is based.

I am totally new to PowerBI and getting myself confused between the difference between when the DAX language is needed and when the M language is needed. I am doing this on the PowerBI desktop.  Strange - I cant find any discussion about daypart manipulations ( maybe didnt look enough).

My query to create the column:

if ( [Time] >= "9:00:00 AM" and [Time] <= "5:00:00 PM" ) 
then "Business hours" 
else "After hours"

Getting "error" values in the new column created. Tried many iterations without success.

[parry2k · Accepted solution]

here is something i tried, i created hour column using DAX , hope it is helpful

Dax Expression

Hours = if(sample2[Time1] >= time(9,0,0) && sample2[Time1] <= time(17,0,0), "Business", "After")

[juju · Accepted solution]

The solution by parry2k works if you are using DAX to create the formula for the new column ( directly from the Report tab). But when trying to addd a new "custom column" from the query editor, looks like the M language is used there instead ( confusing!!). Here is the M langauge that worked for me there :

if [Time] >= Time.FromText("09:00:00") and [Time] <= Time.FromText("17:00:00") 
then "Business Hours"
else "After Hours"

The comparable DAX formula from the Report tab is:

if ([Time] >= time(9,0,0) && [Time] <= time(17,0,0) ) 
, "Business hours" 
, "After hours")

[parry2k · Accepted solution]

here is something i tried, i created hour column using DAX , hope it is helpful

Dax Expression

Hours = if(sample2[Time1] >= time(9,0,0) && sample2[Time1] <= time(17,0,0), "Business", "After")

[juju]

This worked for me only when I created the formula from the "Report " tab using the Dax editor there like you did in your exmaple. The same formula throws errors when doing so from the query editor ( via "edit queries" on ribbon)

[juju]

Strange: I am using this ( modified from your code above) still not working. Getting a "token literal expected" error in the editor:

I have only one table so didint use the qualified table reference name. the error is on the "&&" part.

if([Time] >= time(9,0,0) && [Time] <= time(17,0,0), "Business", "After")

FYI I am doing this from the query editor screen and clicking on "custom column" under "add column" tab on the ribbon.

[juju]

If i change it to below, the syntax error goes away but now new error : "Expression Error " The name 'time' wasnt recognized. Make sure its spelled correctly "!!

Notice "time' in lowercaps:

if [Time] >= time(9,0,0) and [Time] <= time(5,0,0) then "9am-5pm" else "6pm-8am"

[parry2k]

I think following will work, may be some syntax issue but just to give you an idea, add a column and create following DAX:

if (Table[Time] >= time(9,0,0) && Table[Time] <= time(17,0,0) ) 
, "Business hours" 
, "After hours")