Frieze London will run from October 5-8 and Frieze Masters from October 5-9 (both with previews on October 4).
PAD London, the art and design fair in Mayfair, has also moved its dates to coincide, from October 3-9.
Sotheby's confirmed their Contemporary art sales series will also move forward one week to correspond, and it is expected Christie's and Phillips will follow suit.
The new dates leave a difficult nine-day gap before FIAC (October 20-23, 2016), the Contemporary art fair in Paris which traditionally runs immediately after Frieze Week.
A review of this year's PAD London and Frieze Masters appears in this week's ATG print publication.