Google released a massive shift to it's search algorith last Tuesday that gives mobile-friendly websites a massive boost in it's mobile search results.
On the surface, you may think "that won't affect me", what you may not realise is that approximately half of all searches are now conducted on mobile phones. So the impact can be a MASSIVE gain or a massive detriment to gaining clients. The change was so big, that Google even notified webmasters that it was coming!
When you do upgrade, Google's search results now display the tag "Mobile-friendly" increasing the likelihood that potential browsers will choose to read your mobile-friendly website over your competitors.
Also, if 50% of traffic of people are searching for your business on their phone, you can also safely assume that 50% of people are reading your website on their phone as well - and if it's hard to read, they'll probably go elsewhere which isn't great news for your business. You want to catch your customers before they head to someone else's website.
Google has also published a tool so you can work out how mobile-friendly your website is: https://www.google.com/webmasters/tools/mobile-friendly
In summary, it's a perfect time catch the winds of Google change by upgrading your website to be mobile-friendly to quickly increase your market share while your competitors drag their heels.
PS. All BookingTimes websites are mobile-friendly and rank well on Google desktop and Google mobile searches.