Day of reckoning and Judgment day

Day of reckoning noun - (New Testament) day at the end of time following Armageddon when God will decree the fates of all individual humans according to the good and evil of their earthly lives.

Judgment day and day of reckoning are semantically related in day of judgment topic. In some cases you can use "Judgment day" instead a noun phrase "Day of reckoning", when it comes to topics like day of judgement.

Judgment day noun - (New Testament) day at the end of time following Armageddon when God will decree the fates of all individual humans according to the good and evil of their earthly lives.

Day of reckoning and judgment day are semantically related in day of judgment topic. You can use "Day of reckoning" instead a noun phrase "Judgment day", if it concerns topics such as day of judgement.