How to add time in seconds to UTC Date Format

Let current_UTC = [2025, 12, 13, 14, 15, 16] and delta_t = 123456 seconds. How can I add delta_t to current_UTC to create an updated date and have it formatted correctly in UTC Format? Is there a built in function or do I need to code my own arithmetic?

Answer 1

[Shivam]

Hi Zayd,

You can follow the below workaroud to add seconds to UTC Date format:

current_UTC = [2025, 12, 13, 14, 15, 16];

% Convert to a datetime object
current_datetime = datetime(current_UTC, 'Format', 'yyyy-MM-dd HH:mm:ss', 'TimeZone', 'UTC');
disp(current_datetime);

   2025-12-13 14:15:16

% Define the time delta in seconds
delta_t = 123456;

% Add the delta to the current datetime
updated_datetime = current_datetime + seconds(delta_t);

disp(updated_datetime);

   2025-12-15 00:32:52

Hope it solves the requirement.

[Zayd]

This helps - Thank you so much!