Canterbury East interestingly is getting a Sunday uplift that sees some semi-fast Victoria-Canterbury East services in addition to the hourly Victoria-Dover Priory, so most hours it will be 2tph towards London. There is no uplift off-peak Monday-Saturday, so this station will join those in having a better Sunday service than Saturday, which might make sense as a tourist city and on days Kent County Cricket Club are playing at home.
The additional up departures are 09:55, 10:55, 11:55, 14:55, 15:55, 16:55 and 17:55. There are also departures to Faversham only at 12:42, 13:42, 19:42 and 20:42, however these don't connect to anything useful at Faversham (though Faversham-CBE is a strong passenger flow anyway). None of these call at Selling, Teynham and Newington and are fast from Rochester to Bromley South.