Get posts going back given duration (d/h/m)

prawtime.py

import praw
import time
from datetime import datetime
from operator import attrgetter


def get_posts(subreddit):
    r = praw.Reddit(...)
    sub = r.subreddit(subreddit)

    posts = set()
    posts.update(sub.hot(limit=None)) # hot
    posts.update(sub.new(limit=None)) # new
    posts.update(sub.top(limit=None)) # top (all time)
    posts.update(sub.top('hour', limit=None)) # top (last hour)
    posts.update(sub.top('day'limit=None)) # top (last day)
    posts.update(sub.top('week', limit=None)) # top (last week)
    posts.update(sub.top('month', limit=None)) # top (last month)
    posts.update(sub.top('year', limit=None)) # top (last year)
    posts.update(sub.rising(limit=None)) # top rising
    posts.update(sub.controversial(limit=None)) # controversial
    sorted(posts, key=attrgetter("created_utc")) # sort into newest first
    return posts


def userDate(ts):
    return datetime.utcfromtimestamp(ts).strftime('%Y-%m-%d %H:%M:%S')


def main():
    subreddit = input('Enter a subreddit >> ')
    print('Now enter a time range.')
    print('E.g, if you enter 2 days, 6 hours, 0 minutes, you will get every hot post currently')
    print('in r/' + subreddit + ' going back 2 days, 6 hours, 0 minutes.')
    print('Enter 0\'s if you don\'t have to be that specific.')

    days = int(input('Enter the number of days in your range  >> '))
    hours = int(input('Enter the number of hours in your range  >> '))
    minutes = int(input('Enter the number of minutes in your range  >> '))
    duration = (days * 86400) + (hours * 3600) + (minutes * 60)
    then = time.time() - duration

    print("\nFetching posts...")
    posts = get_posts(subreddit)
    matches = [p for p in posts if p.created_utc > then]

    print("\nFound " + str(len(matches)) + " matches\n")
    for m in matches:
        print(m.title + " : " + userDate(m.created_utc))


main()