以UTC格式日期为过滤器查询mongodb

Question

I have 1 million+ record in MongoDB database and need to query records, such that their date field contains a value which is not in the last 30 days. The problem is it's present in UTCString() format and comparison in this format is not working.

Date in database looks like this - "Tue, 06 Apr 2021 23:22:43 GMT"

Answer 1

instead of querying using the UTC date, use can use the Unix version of the date eg. use 1616284800000 instead of 2021-03-21T00:00:000Z

So your query will look like this

db.Collection.find({"dateField":{$lte:new Date(1616284800000)}})

Also if you haven't already tried this you can

db.Collection.find({"dateField":{$lte:ISODate("2021-03-21T00:00:00.000Z")}})