The James Webb Space Telescope (JWST) era refers to the period of time in astronomy and astrophysics when the JWST, a large, infrared-optimized space telescope, is operational and conducting observations. The JWST era represents a significant advancement in observational capabilities, as the telescope is expected to revolutionize our understanding of the universe, including the early formation of galaxies, the birth of stars and planetary systems, and the potential for detecting signs of life on exoplanets. Researchers in the JWST era are utilizing the telescope's advanced instruments and capabilities to address some of the most pressing questions in astrophysics and cosmology.