Date and Time Arithmetic

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How to add or subtract days or minutes from a MQL5 Time Structure ?

[Simon Gniadkowski]

chandra100:
How to add or subtract days or minutes from a MQL5 Time Structure ?

Convert to seconds then add or subtract . . .  do you understand what a datetime type variable is ?  look it up.

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RaptorUK:
Convert to seconds then add or subtract . . .  do you understand what a datetime type variable is ?  look it up.

I dont think ur idea will work.

[Simon Gniadkowski]

chandra100:

I dont think ur idea will work.

Maybe I misunderstood your question then,  why will it not work ?

[[Deleted]]

,RaptorUK:
Maybe I misunderstood your question then,  why will it not work ?

Assume the present date is Feb 28 and time is 23:00.    

If I like to add 2 hours, it has to change all the three of hour part , day part and month part of datetime strucrure.

Leap year factor should also be taken into account.

converting into seconds won't do any purpose. 

[Simon Gniadkowski]

chandra100:

Assume the present date is Feb 28 and time is 23:00.    

If I like to add 2 hours, it has to change all the three of hour part , day part and month part of datetime strucrure.

Leap year factor should also be taken into account.

converting into seconds won't do any purpose. 

OK,  I did understand your question correctly,  if you have Feb 28th 23:00 saved in a datetime variable and you want to add 2 hours all you do is add  2 * 60 * 60 to the variable.  You don't need to be concerned with leap years.  when you use TimeToString() with this variable and Print() it you will see the correct date and time . . .

[Dua Yong Rew]

https://www.mql5.com/en/forum/7986

I asked something similar before 

[Alain Verleyen]

See this article.

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angevoyageur:
See this article.

That was fine.