Wisdom of today.

The Brahma Vaivarta Purana (related to Rathantara kalpa) mentions a ten thousand year period, starting from the traditional dating of the Kali Yuga epoch (for this one it is January 14 or 2:27 AM on February 18, 3102 BC/BCE), during which bhakti yogis will be present.

Lord Krishna foretold that Kali Yuga will be full of extreme hardships for people with ideals and values.

A special 10,000 year "Golden Age" period within Kali Yuga occurs only in this Maha Yuga Cycle.

This text is taken from the Brahma-vaivarta Purana

Text 59:

kaler daSa-sahasraaNi

madbhaktaaH saMti bhu-tale

ekavarNaa bhaviSyaMti

madbhakteSu gateSu ca

"For 10,000 years of Kali such devotees of Mine will be present on earth. After the departure of My devotees there will be only one varna, Outcaste."

The above is supported in 4.90.32-33:

kalau dasa-sahasrAni

haris tiSThati medinI

devAnAM pratimA pUjyA

sAstrANi ca purANakam

"(Sri Krisna said:) Lord Hari will stay on this earth for the first ten-thousand years of Kali-yuga. Till then gods will be worshipped and the Puranas and scriptures will also be present."

Source : https://tibetanbuddhistencyclopedia.com/en/index.php/Kali_Yuga