Speed up for loop

I need to speed up this code, T is a table with 5 columns and approximately 1 million rows. The code is doing what I need but it is pretty slow, it takes 1 hour to do the calculation. Someone can help?

Thanks in advance

rmsA = zeros(height(T),1);
for i=1:height(T)
    tf = isbetween(T.VarName1,T.VarName(i)-minutes(2),T.VarName(i)+minutes(2));
    xA = T.VarName2(tf);
    rmsA(i) = rms((xA-993)/102.04);
end

[BALAJI KARTHEEK]

Use parallel computing and parfor loops are available in matlab exactly to solve these type of problems

[darova]

Can you attach sample data for experiments?

Answer 1

[Sulaymon Eshkabilov]

To process date data format is slow. Thus, you can convert all into a serial date number using datenum() that shall speed up the simulation process.

good luck

[Emiliano Ascenzi]

How can I apply isbetween to datenum output? I don't know how much 2 minutes are worth in that form

[Med Aymane Ahajjam]

treat them like you would with normal numbers : .. < .. < ..