Time management is difficult. Even under the most positive of conditions, being able to get everything you want to get done within a day is tough. Research suggests that online teaching involves even more work and is even more time-consuming. This is the stark reality of remote teaching.
For example, in this research paper, 64% of teachers said that teaching online takes considerably more effort. Research suggests that online teaching demands more time both because it takes longer to develop online lessons and courses, and because there is more of a need for reaching out, answering questions of and keeping in contact with individual students, all of which is easier to do face to face.