Converting time to a epoch

5 views (last 30 days)
John Lee
John Lee on 24 Sep 2021
Edited: Cris LaPierre on 25 Sep 2021
When I have time data of a colum (Excel file) and each column has a data like "15:20:20" which means 3 something p.m.
So, there is only time information but not data. Suppose that the column is 100-by-1.
How can I convert it to time epoch such as a single number.

Answers (1)

Cris LaPierre
Cris LaPierre on 24 Sep 2021
Edited: Cris LaPierre on 25 Sep 2021
In MATLAB, you can read this in as a duration (see options here) using readtable. It may autodetect the time correctly. If not, you can manually specify it using code similar to this:
opts = detectImportOptions("filename.xlsx");
opts = setvartype(opts,1,'duration');
opts = setvaropts(opts,1,'InputFormat','hh:mm:ss');
data = readtable("filename.xlsx",opts)
Once imported, you can modify the format as you like. You can also use the following functions to represent the duration in a single unit of time like days, hours, minutes, and seconds
  1 Comment
John Lee
John Lee on 25 Sep 2021
Thanks you for your help.
I found that one can convert the time to a single number by applying a function in the Excel file.
You can refer to the site on how to do it: https://www.youtube.com/watch?v=VKIOaWO0IrI
Thanks,

Sign in to comment.

Categories

Find more on Data Type Conversion in Help Center and File Exchange

Products


Release

R2021a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!