time_total_seconds.md

Assuming that total_seconds = 3600

Option 1:

distance_of_time_in_words(total_seconds) #=> "about 1 hour"

Option 2:

Time.at(total_seconds).utc.strftime("%H:%M:%S") #=> "01:00:00"

Option 3:

seconds = total_seconds % 60
minutes = (total_seconds / 60) % 60
hours = total_seconds / (60 * 60)

format("%02d:%02d:%02d", hours, minutes, seconds) #=> "01:00:00"

source : https://stackoverflow.com/questions/4175733/convert-duration-to-hoursminutesseconds-or-similar-in-rails-3-or-ruby/30596860