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Date/Time: Sun, 16 Mar 2025 08:26:28 +0000



[Programming Help] - How to calulate last 20minutes in spreadsheet

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[2022-08-02 18:49:22]
User361939 - Posts: 167
Hello,
I am trying to calculate how many bars appear in last e.g 20minutes for non time based chart type.

I don't how to calculate until value reach arround 20minutes, than it should stop. Should i use as well index function to calculate amount of bars?

Thank you for any suggestions
[2022-08-02 22:07:17]
Sawtooth - Posts: 4184
Try this:

Cell T1:
=FRACTIME(A3)-20/1440

Cell T3:
=FRACTIME(A3)

Cell U3:
=INDEX(T$3:T$1002,MATCH($T$1,T$3:T$1002,-1),1)

Cell V3:
=IF(U3=T3,1,V4+1)
[2022-08-11 11:28:55]
User361939 - Posts: 167
Thank you!
V3 giving mi number of bars.
I am struggling how to calculate last 20minutes from current time.

Any advice?

Best Regards
Date Time Of Last Edit: 2022-08-11 11:29:09
[2022-08-11 13:31:58]
Sawtooth - Posts: 4184
I am struggling how to calculate last 20 minutes from current time.
The current chart datetime is in J41

There are 1440 minutes in 24 hours, so 20 minutes is 20/1440

So the datetime 20 minutes ago is:
=J41-20/1440
The time 20 minutes ago is:
=FRACTIME(J41)-20/1440

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