Erdem, H. A.Ucum, A.Ilarslan, K.Camci, C.2025-01-212025-01-2120232075-98272313-0210https://doi.org/10.15330/cmp.15.2.482-494https://hdl.handle.net/20.500.12587/25147In the theory of curves in Euclidean 3-space, it is well known that a curve /3 is said to be a Bertrand curve if for another curve /3* there exists a one-to-one correspondence between /3 and /3* such that both curves have common principal normal line. These curves have been studied in differ-ent spaces over a long period of time and found wide application in different areas. In this article, the conditions for a timelike curve to be Bertrand curve are obtained by using a new approach in contrast to the well-known classical approach for Bertrand curves in Minkowski 3-space. Related examples that meet these conditions are given. Moreover, thanks to this new approach, timelike, spacelike and Cartan null Bertrand mates of a timelike general helix have been obtained.eninfo:eu-repo/semantics/openAccessBertrand curve; timelike curve; spacelike curve; Cartan null curve; Minkowski 3-spaceArticle15248249410.15330/cmp.15.2.482-4942-s2.0-85179339755Q2WOS:001157328600013Q1