Typical opening hours per day have reduced by approximately one hour per day on average from 10 hours per day pre-COVID-19 to 9 hours currently.
Mae oriau agor nodweddiadol y dydd wedi lleihau tua un awr y dydd, ar gyfartaledd, o 10 awr y dydd cyn pandemig COVID-19 i 9 awr ar hyn o bryd.