WebBrowser Alarm Clock

# This python script takes a length of time (expressed in hours and minutes, such as 5:31, or 5 hours and 31 minutes), and opens a new webbrowser tab or window after the specified amount of time has passed.
# Made in 2012 by Tatantyler, and I claim no responsibility if the thing fails to work.
# It worked for me, though.

import datetime
import os
import webbrowser

def setAlarm(alarm_hr, alarm_min, url):
    currentTime = datetime.datetime.time(datetime.datetime.now()) #look at all those "datetime"s!
    newAlarmMin = currentTime.minute+alarm_min
    newAlarmHr = currentTime.hour+alarm_hr + int(newAlarmMin / 60)
    newAlarmMin = newAlarmMin % 60
    alarmTime = datetime.time(newAlarmHr, newAlarmMin)
    oldTime = datetime.datetime.time(datetime.datetime.now())
    currentTime = datetime.datetime.time(datetime.datetime.now())
    print("Setting alarm for "+str(alarmTime)+" .")
    while True:
        currentTime = datetime.datetime.time(datetime.datetime.now())
        dT = datetime.datetime.combine(datetime.date.today(), currentTime) - datetime.datetime.combine(datetime.date.today(), oldTime)
        #print("dbg: "+str(dT.total_seconds()))
        if (dT.total_seconds() >= 1):
            oldTime = currentTime
            print("Current time is: "+str(currentTime))
            dT_2 = datetime.datetime.combine(datetime.date.today(), alarmTime) - datetime.datetime.combine(datetime.date.today(), currentTime)
            if (dT_2.total_seconds() <= 1):
                print("Alarm is GOING OFF!")
                webbrowser.open(url, 1, True)
                return