Flowcode Support Board

when I try to set the 24 hour value (rtc module default format) to 12 hour format.

specifically to change from 0:00 format to (12 hour format), which should be (12:00am), as shown below.

00:00 (24 hours format) = 12:00 am (12 hours format)

Using the following logic schematic loaded into the microcontroller as shown below.
After loading it into the microcontroller, the logic that follows is
wrong --> 0:00 (24 hours format) = 0:00 am (12 hours format)
correct --> 00:00 (24 hours format) = 12:00 am (12 hours format)

There is a lot of discussion on this on the Web..

So 11:59 pm (23:59) goes to 0:00 (it's a new day) for both 12 and 24 hour formats.

Martin

Hello Martin.

I know there are discussions on the Internet about this topic.
As an electronics designer, when I have a question about a format or even general design questions, I find it helpful to look for standardized references.
In the case of the 12-hour format, a useful reference is the successful smartphone industry.
Over years of using smartphones, I have never come across the unusual feature where the equivalent of 0 hours in 24-hour format is 0 hours in 12-hour format.
Thinking about an "easy-to use" philosophy for product design, my end client is accustomed to seeing that 0 hours (24h format) is equivalent to 12 hours (am).

I would like to avoid complaints because the customer sees a number that they are not accustomed to including in the time format they see daily.

However, i can program a separate format converter or add an if statement to change the value, making the macro function a little more confusing.

I attach a table with the equivalent values ​​between time formats.

12 Hours format - 24 Hours format
12:00 Am - 00:00
01:00 AM - 01:00
02:00 AM - 02:00
03:00 AM - 03:00
04:00 AM - 04:00
05:00 AM - 05:00
06:00 AM - 06:00
07:00 AM - 07:00
08:00 AM - 08:00
09:00 AM - 09:00
10:00 AM - 10:00
11:00 AM - 11:00

12:00 PM - 12:00
01:00 PM - 13:00
02:00 PM - 14:00
03:00 PM - 15:00
04:00 PM - 16:00
05:00 PM - 17:00
06:00 PM - 18:00
07:00 PM - 19:00
08:00 PM - 20:00
09:00 PM - 21:00
10:00 PM - 22:00
11:00 PM - 23:00

best regards.
Mcolin.