Times Index -- indexes the Times, Sunday Times & Magazine, Times Literary Supplement, Times Educational Supplement, Times Educational Supplement Scotland, and Times Higher Educational Supplement.
Official Index to the Times, 1906-1980 "is a collection of short index entries from the 296 printed volumes of the Official Index to the London Times which covers the years 1906-1980 inclusive. Coverage includes all issues of The Times, The Sunday Times, and supplements. These index entries do not contain or link to the full text of the newspaper articles. They can be used to help find articles in printed or microfilm versions of the London Times." See also Palmer's Index to the Times, 1790-1905 -- not available at UCF, but some digitized volumes are available in the Internet Archive.