Forum Discussion
How to convert DATE/TIME Column to duration?
You cannot automatically convert a Time column to a duration since a Time is a single point in time so it has no duration. But in your case it sounds like something like 05:00 should be a duration of 5 hours. So one way to do this is calculate the duration from midnight to the specified time. You can do this by subtracting a time of "00:00" from your current time column (subtracting one time from another returns a duration)
If you click on "Add Column" in the ribbon then choose the "Custom Column" optoin and enter a formula like the following it will return a duration.
[YourTimeColumn] - Time.FromText("00:00:00")
d_gosbell it dosn't work if duration if longer than 24 hr. Is there any solution to this case?
Anonymous wrote:
d_gosbell it dosn't work if duration if longer than 24 hr. Is there any solution to this case?
It depends what format your input is in. The original question here was about converting a time column to a duration and times cannot have more than 24 hrs. So you either have a text value or maybe a datetime.
If you have a text value something like "27:35:12" in your data then you can use a function like the following example to convert the format into the following format ddd.hh:mm:ss which is what power query uses for durations longer than 24 hrs
let
fixDuration = (input as text) =>
let
parts = Splitter.SplitTextByDelimiter(":")(input),
hour = Number.FromText(parts{0}),
days = Number.RoundDown( hour / 24),
newHour = Number.ToText( Number.Mod(hour, 24)),
newValue = if days > 0
then Duration.FromText(Number.ToText(days) & "." & newHour & ":" & parts{1} & ":" & parts{2})
else Duration.FromText(input)
in
newValue,
Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMjK3Mja1MjRSitWJVjLUM7YyNrMyNFSKjQUA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [TextColumn = _t]),
#"Added Custom" = Table.AddColumn(Source, "DurationColumn", each fixDuration([TextColumn]))
in
#"Added Custom"
if your data is already in ddd.hh:mm:ss format you can just use Duration.FromText to convert the type