Re: Business Hours
No, there's not. In a case like this, if you qualify for two separate listings that's what you'd do. Same as a bank, where you've got hours for the bank lobby and a 24/7 ATM outside. They get two GMB profiles.
Read the Google Business Guidelines, especially the part about departments and the part about hours.
In addition to what the guidelines say (make sure the two listings have different primary categories, etc) there's a few other landmines you should be aware of too. Mainly that you should have a separate phone number for the bar and restaurant if possible, and I'd consider making a page on the site specifically for the bar so you have a different page to point that profile towards.