How to calculate time elapsed (time in GMT format)

Hi,

I have below two different times, and want to calculate time elapsed:

2017-12-13-T16:00:23.488+08:00
2017-12-13-T16:02:24.982+08:00

Many thanks in advance,

Answer 1

[Star Strider]

One approach:

v = {'2017-12-13-T16:00:23.488+08:00'
     '2017-12-13-T16:02:24.982+08:00'};
T = datenum(v, 'yyyy-mm-dd-THH:MM:SS.FFF')
dT = etime(datevec(T(2)),datevec(T(1)))             % Elapsed Time In Seconds

dT =
       121.49

NOTE — In theory, datetime can do something like this, however it will not import your data using the date format, and refuses to automatically recognise the time zone. I suppose datetime has its uses, but they frequently elude me. Anyway, the ‘classic’ functions work.

[Kanakaiah Jakkula]

Sir,

I want to get the current time in the following format:

2017/12/16 10:46:18 I use: currentTime=clock datenum(currentTime) currentTime =

   1.0e+03 *

    2.0170    0.0120    0.0160    0.0110    0.0450    0.0382
The I convert:
datenum(currentTime)

ans =

   7.3705e+05

But Can I print the time format using clock as: 2017/12/16 10:46:18?

[Star Strider]

Yes. Use the datestr (link) function:

t = clock;
ds = datestr(t, 'yyyy/mm/dd HH:MM:SS')

ds =
    '2017/12/15 22:17:32'

[Kanakaiah Jakkula]

Thanks Sir. It works.

[Star Strider]

As always, my pleasure.