There is no specific good time on the entire day on January 4, 2021 in Hindu calendar.
Purva Phalguni or Pooram Nakshatra till 6:51 PM on January 4. Then onward it is Uttara Phalguni or Uthiram Nakshatra till 5:38 PM on January 5.
Karka Rashi till 8:13 PM on January 2. Then onward it is Simha Rashi till 12:33 AM on January 5.
Abhijit Muhurta – 12:10 PM to 12:53 PM
Amrita Kalam – 1:04 PM to 2:37 PM
Ravi Yog – from 6:51 PM on Jan 4
Amrita Kalam – 1:04 PM to 2:37 PM
Ravi Yog – from 6:51 PM on Jan 4