Please could you explain to me the difference?
at these times / in these times
Thanks a lot.
at these times means a specific time; e.g., we have appointments at these times: 8:00am, 10:00, and 12:00pm, so you if you want to book an appointment, you must do so in these time periods.
in these times refers to a span of time. For example, this era or in this day and age; e.g., in these times, a college degree isn't enough. You need at least an M.A. to get a good job.