In this talk, I will discuss a holographic construction of the timelike entanglement entropy (TEE), a correlation/entanglement measure in the time direction. Here, TEE receives contributions from a set of spacelike surfaces and a finite timelike bulk surface with mirror symmetry. Utilizing this construction in theories with a general dynamical critical exponent z and hyperscaling violation exponent θ, I will show that the holographic TEE can probe the physically acceptable region of the parameter space. If time permits, I will discuss some of the recent developments in the context of black hole backgrounds.