M Query If Statement for Dates and time

[TatyDo]

Hallo Everone,

I need help to transform the folowing situation into M query. 

I hava the folowing situation, where I need to distinguish my DB in two stagges. where the condition of "Morning" , "Evening" and "night"changes over time. 

data that are before 04.02.2018 then if time is between 10:00 and 12:00 then "Morning" and between 12:00 and 18:00 is "Evening" later is "Night" and the data after 04.02.2018 then if time is between 09:00 and 11:00 then "Morning" and between 11:00 and 17:00 is "Evening" later is "Night"

I want to do it directly in the Query so using M language , I am not looking for a measure.

[amitchandak]

@TatyDo , Try a new column in M-like. As I was not sure on month so, change as per need

if DateTime.Date([Date]) <#date(2018,02,04)
if DateTime.Time([Date]) >= #time(10,0,0) and DateTime.Time([Date]) >= #time(12,0,0) then "Morning" else
if DateTime.Time([Date]) >= #time(12,0,0) and DateTime.Time([Date]) >= #time(18,0,0) then "Evening" else "Night"
else
if DateTime.Time([Date]) >= #time(9,0,0) and DateTime.Time([Date]) >= #time(11,0,0) then "Morning" else
if DateTime.Time([Date]) >= #time(11,0,0) and DateTime.Time([Date]) >= #time(17,0,0) then "Evening" else "Night"

[TatyDo]

Thank you so much!, I needed to change some <> signs to fit and add then but it worked great 🙂