Looks fixed to me in 7.66.219
I changed the clock and ran the command.
//echo -ag $asctime(yyyy/mm/dd HH:nn:ss zzz)
2021/10/01 22:38:41 -0400 GMT
2021/11/01 22:38:53 -0400 GMT
2021/11/07 22:39:01 -0500 GMT (Nov 7, 2021 - Daylight Saving Time Ends)
2021/12/01 22:39:27 -0500 GMT
2022/01/01 22:39:35 -0500 GMT
2022/02/01 22:39:42 -0500 GMT
2022/03/01 22:39:49 -0500 GMT
2022/03/12 22:39:56 -0500 GMT
2022/03/13 22:40:04 -0400 GMT (Mar 13, 2022 - Daylight Saving Time Starts)