Scientific Computing with Python Projects - Time Calculator - Xt0P957q8wR_sdQwZoskZ

Tell us what’s happening:

It passed the test but there is certainly something wrong. I could not figure out how to correct it. I have already planned to redo the whole thing later after I have some rest. Before I completely abandon this version, I want to see if someone else can help.

print(add_time("11:06 PM", "12:00", "Tuesday"))
11:06 AM, Wednesday (next day)
print(add_time("11:06 PM", "13:00", "Tuesday"))
12:06 AM, Thursday (2 days later)

the mistake would carry on until

print(add_time("11:06 PM", "23:00", "Tuesday"))
10:06 AM, Thursday (2 days later)
print(add_time("11:06 PM", "24:00", "Tuesday"))
11:06 PM, Wednesday (next day)

https://replit.com/@StephenChan1/freeCodeCampSCPtime-calculator#time_calculator.py

Your code so far

def add_time(start, duration, start_day=""):
  # chopping up input for calculations
  a = start.split()
  start_time, AMPM = a[0], a[1]
  b = start_time.split(":")
  start_hr, start_min = int(b[0]), int(b[1])
  c = duration.split(":")
  dura_hr, dura_min = int(c[0]), int(c[1])

  # setting up variable for return
  new_min = 0
  co_hr = 0 # for minute carry over to hour
  new_hr = 0
  new_day = 0
  new_AMPM = ""
  new_weekday = ""
  days_later = ""
  # minutes, carry over to hours at 60
  minutes = start_min + dura_min
  if minutes <= 59:
    new_min = minutes
  else:
    new_min = minutes % 60
    co_hr += 1

  # hours, carry over to days
  hours = start_hr + dura_hr + co_hr
  if hours <= 11:
    new_hr = hours
    new_AMPM = AMPM
  elif hours % 12 == 0:
    new_hr = 12 # return 12:xx instead of 0
    new_day += (hours // 24)
    if AMPM == "AM":
      new_AMPM = "PM"
    else:
      new_AMPM = "AM"
      new_day += 1
  else:
    new_hr = hours % 12
    new_day += hours // 24
    if dura_hr % 24 == 0: 
      new_AMPM = AMPM
    else:
      if AMPM == "AM":
        new_AMPM = "PM"
      else:
        new_AMPM = "AM"
        new_day += 1
    
  # n days later  
  if new_day == 1:
    days_later = " (next day)"
  elif new_day >= 2:
    days_later = f" ({new_day} days later)"
  
  # weekday
  weekday = [", Monday", ", Tuesday", ", Wednesday",
             ", Thursday", ", Friday", ", Saturday", ", Sunday"]
  if start_day:
    weekday_lower = list(map(lambda x: x.lower().strip(", "), weekday))
    start_day_idx = weekday_lower.index(start_day.lower())
    if new_day == 0:
      new_weekday = weekday[start_day_idx]
    else:
      new_day_idx = (start_day_idx + new_day) % 7
      new_weekday = weekday[new_day_idx]
    
  new_min = str(new_min).zfill(2) # zero padding minutes

  new_time = f"{new_hr}:{new_min} {new_AMPM}{new_weekday}{days_later}"
  return new_time

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Challenge: Scientific Computing with Python Projects - Time Calculator

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