diff --git a/projects/015-time-calculator/python/main.py b/projects/015-time-calculator/python/main.py
index e69de29..aa5db47 100644
--- a/projects/015-time-calculator/python/main.py
+++ b/projects/015-time-calculator/python/main.py
@@ -0,0 +1,93 @@
+def add_time(start_time: str, duration_time: str, day_week="") -> str:
+
+    time,am_pm=start_time.split()
+
+    start_hours,start_minutes=map(int, time.split(":"))
+    if start_hours==12:
+        start_hours=0
+
+    duration_hours,duration_minutes=map(int, duration_time.split(":"))
+
+    add_hours=start_hours+duration_hours
+    add_minutes=start_minutes+duration_minutes
+
+    if add_minutes>=60:
+        add_hours+=add_minutes//60
+        add_minutes%=60
+
+    half_day=add_hours//12
+
+    if add_hours>12:
+        add_hours%=12
+
+    if am_pm=="AM":
+        if half_day%2==0:
+            format_am_pm="AM"
+        else:
+            format_am_pm="PM"
+
+    elif am_pm=="PM":
+        if half_day%2==0:
+            format_am_pm="PM"
+        else:
+            format_am_pm="AM"
+
+    #If the result will be the next day, it should show (next day) after the time. 
+    #If the result will be more than one day later, it should show (n days later) after the time, 
+    #where "n" is the number of days later.
+
+    if am_pm=="AM":
+        if half_day==0 or half_day==1:
+            n_days=0
+            days_later=""
+        elif half_day==2:
+            n_days=1
+            days_later="(next day)"
+        else:
+            if half_day%2==0:
+                n_days=half_day//2
+                days_later=f"({n_days} days later)"
+            else:
+                n_days=(half_day-1)//2
+                days_later=f"({n_days} days later)"
+
+    if am_pm=="PM":
+        if half_day==0:
+            n_days=0
+            days_later=""
+        elif half_day==1 or half_day==2:
+            n_days=1
+            days_later="(next day)"
+        else:
+            if half_day%2==0:
+                n_days=half_day//2
+                days_later=f"({n_days} days later)"
+            else:
+                n_days=(half_day+1)//2
+                days_later=f"({n_days} days later)"
+
+    if add_hours==0:
+        add_hours=12
+    
+    #If the function is given the optional starting day of the week parameter, 
+    #then the output should display the day of the week of the result.
+    #The day of the week in the output should appear after the time and before the number of days later.
+         
+    days_of_week=["Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"]
+
+    day_week=day_week.capitalize()
+    if day_week in days_of_week:
+        day_week=days_of_week[(days_of_week.index(day_week)+n_days)%7]
+        day_week=f", {day_week.capitalize()}"
+    else:
+        day_week=""
+
+    return f"{add_hours}:{add_minutes:02} {format_am_pm}{day_week} {days_later}"
+
+
+start_time=input("Enter a start time in the 12-hour clock format (example 12:00 AM/PM): ")
+duration_time=input("Enter a duration time (hh:mm): ")
+day_of_week=input("Enter a starting day of the week, case insensitive: ")
+
+result=add_time(start_time, duration_time)
+print(result)
\ No newline at end of file