how to Specify Time Zones?

i have this time array(datetimes-attached). since this is a UTC time i need to convert it into local time that is 4 hr 54 min ahead of UTC.

i am using this code give bellow

TimeZone = ' +4:54', a = datetimes.TimeZone

or even if i use this

datetimes.TimeZone = '+4:54'

it gives me an error saying

'Struct contents reference from a non-struct array object.'

what i am doing wrong here ??

and in this case what i need to do to get rid of this problem ?

Answer 1

[Bhaskar R]

Given mat file contains series date numbers. Instead of taking time zone as '+HH:mm' format specify local area string as 'Asia/Kolkata'

load('datetimes.mat');
t =  datetime(datetimes,'ConvertFrom','datenum');    % series to datetime format
t.TimeZone = 'Asia/Kolkata';

[pruth]

in atmopsheric research we can not use kolkatas time for Pune. even in india we we follow same time zone local time varies with longitude! i have to specify time as '+HH:mm' format