How to convert Universal time to Local time?

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Ara 2022-12-26

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https://ww2.mathworks.cn/matlabcentral/answers/1884412-how-to-convert-universal-time-to-local-time

评论： Ara 2022-12-28

采纳的回答： Jan

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Dear All,

I am trying to convert Universal time to local time. I used this function

% Convert time values to datetime array
    timeDatetime = datetime(selectedData(:,3)./3600, 'ConvertFrom', 'epochtime', 'Epoch', '1970-01-01');
    
    % Apply time zone offset to datetime array
    timeLocal = tzoffset(timeDatetime, 'EST','5');

but I got an error " Too Many input arguments".

Does anyone knows how to resoolve it?

Thank you,

Ara

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Steven Lord 2022-12-27

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dt = datetime('now', 'TimeZone', 'local')
dt = datetime
   27-Dec-2022 14:55:52
dt.TimeZone
ans = '+00:00'
dt.TimeZone = 'America/New_York'
dt = datetime
   27-Dec-2022 09:55:52
dt.TimeZone = 'local'
dt = datetime
   27-Dec-2022 14:55:52

Ara 2022-12-28

Hi Steven,

Thank you for the code but I got thi error:

Invalid expression. Check for missing multiplication operator, missing or unbalanced delimiters, or other syntax error. To construct matrices, use brackets instead of parentheses.

Would you please tell me how to resolve it?

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采纳的回答

Jan 2022-12-26

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1884412-how-to-convert-universal-time-to-local-time#answer_1136557

编辑：Jan 2022-12-26

在 MATLAB Online 中打开

The command tzoffset accepts one input only:

[dt,dst] = tzoffset(t)

Therefore the additional arguments 'EST','5' are not valid.

Maybe you mean

T = datetime(selectedData(:,3)./3600, ...
      'ConvertFrom', 'epochtime', 'Epoch', '1970-01-01', 'TimeZone', 'UTC');
T.TimeZone = 'America/New_York';  % Set accordingly, perhaps 'system'

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Eric Sofen 2022-12-27

That looks like a problem with your conversion from epoch time, but without knowing the values of selectedData, it's hard to know what the appropriate conversion factor should be.

Ara 2022-12-28