Open 24/7 Published on July 27, 2016 in The Many Different Flavors of the OEEFull resolution (1065 × 874) Open 24/7 door sign saying open 24 7 for 24 hours 7 days, or around the clock. This work by Christoph Roser at AllAboutLean.com is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. Please credit the image as shown below. For digital documents and web pages please do include the links as shown below. Thank you.By Christoph Roser at AllAboutLean.com under the free CC-BY-SA 4.0 license.