Google translated from German:
Reserved from August 24th, but initially not implemented on this day, additional broadcasting times via the broadcasting systems in Oman, CEST from 7:00 a.m. to 9:30 a.m. on 13630 and 13850 kHz, then until 10.30 a.m. on 13740 and 15310 kHz and from 1.30 p.m. to 4.00 p.m. on 13630 kHz.

Should it come to that, the BBC would broadcast almost the whole day for Afghanistan, with only two breaks of one and a half hours in the morning and five and a half hours at night. For the expansion, the usual alternating design in Dari (the Afghan form of Persian) and Pashtun is planned for shipments to Afghanistan.

The BBC‘s existing Afghanistan program is currently running on the following frequencies, unless otherwise stated, broadcast from Oman:
(times is CEST = UTC+2)
02.30-03.00: 1413 kHz
02.30-04.00: 6195 kHz, 7295 kHz (Austria)
03.00-05.00: 7445 kHz
04.00-05.00: 9410 kHz, 9880 kHz (Armenia)
05.00-05.30: 9880 kHz, 11870 kHz (Abu Dhabi)
05.00-05.30: 13580 kHz (Armenia)
10.30-13.30: 13740, 15310 kHz
16.00-21.00: 5970 kHz, 7465 kHz (Singapore)
19.00-21.00: 5875 kHz (Armenia)
20.00-21.00: 1413 kHz

Kai Ludwig, Radio Eins Radio-News (2021-08-24)