Converting military time (24hr) to standard time (12hr)

MIT App Inventor Help
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1

How would I be able to convert military time to standard time by using a list of all military times (0-24), and incorporating sequence, selection, and repetition.

2

what the military time looks like? to change to what kind/format? better to have some demo here.

3

Have you seen

?

4

image
image375×649 11.9 KB

5

i want to know what the code would look like with all of the factors I stated incorporated into the code.

6

You could make that a two column table with the second column containing the standard time code.

Then use the lookup-in-pairs block to convert values from column 1 to the result in column 2.

Set conversionTable to create-empty-list
add item ("0000","12:00 midnight") to  conversionTable
for each hour in list ('01', 02', '03',...'11') 
  add item (JOIN(hour,'00'),JOIN(hour,":00 am") ) to  conversionTable
end for each
(see the Method 2 table in my prior link for how to continue this.)
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7

but how would I incorporate selection and repetition with that?

8

See chapters 18,19,20 in the free book at
http://www.appinventor.org/book2

They show you the blocks that incorporate those techniques.

9 
  set hour to segment(time, 1, lenth (time)-2)
  if hour =24 or hour =0 then 
    return  '12 midnight'
  else if hour>12 then
     return hour-12 && 'pm'
  else if hour=12 then
     return '12pm'
   else 
  return hour && 'am'
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