Hi Demeka! It all depends on your group size and what kind of experience you're looking for. If you have a larger group (6-15) you can choose day or evening. If you're looking for a combination of drinking and sight seeing, I'd recommend a tour during the day. In the evening you'll be limited on some of the murals and street art you'll be able to see since some areas don't have the best lighting in the evening, however, most of the places we stop at will be much more lively then. If you have a group less than 6, we would need to put you together with another group, so time of day will be based on what times have seating. As far as the bar crawl vs happy hour crawl question goes, the big difference between the two is that the happy hour crawl does not have drink tickets included, so you'd be paying your way at the bars (during their happy hours drinks range from $3-$7) and, the times we offer the happy hour tours on Thursdays is limited to 3-5 and 5:30-7:30