The changes will apply to all TfL services
It means over 60s will not be entitled to free travel before 9am on weekdays, but disabled Freedom Pass holders will be unaffected.
It is part of a funding agreement with the government after it bailed out TfL.
The new measure also applies to the 60+ Oyster photocard and English National Concessionary Scheme.
The change comes into force on Monday, 15 June and, while TfL describes the measure as “temporary”, it is not clear how long it will be in place for.
Shashi Verma, Chief Technology Officer at Transport for London, said: “We are working hard to ensure that those who have no option other than to travel using public transport can do so safely.
“Given the national requirement to maintain two-metre social distancing, the capacity of buses and trains is hugely reduced.
“These temporary changes to the Older Person’s Freedom Pass and 60+ Oyster card pass during morning peak travel will help reduce the risk of crowding when it would be more difficult to maintain social distancing.”
TfL said the cards would continue to be valid at all other times on weekdays and all day on weekends and Bank Holidays.
Passengers are being advised not to travel immediately after 9am, if possible, to help reduce potential crowding on buses and trains.
Those affected will be contacted directly to be informed of the change, TfL says.
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