What is the best way to store dates in MongoDB? -

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i starting learn mongodb , hoping migrate mysql.

in mysql, there 2 different data types - date ('0000-00-00') , datetime ('0000-00-00 00:00:00'). in mysql, use date type, not sure how transfer them mongodb. in mongodb, there date object, comparable datetime. seems appropriate use date objects, wasting space, since hours, min, sec not utilized. on other hand, storing dates strings seems wrong.

is there golden standard on storing dates ('0000-00-00') in mongodb?

bson (the storage data format used mongo natively) has dedicated date type utc datetime 64 bit (so, 8 byte) signed integer denoting milliseconds since unix time epoch. there few valid reasons why use other type storing dates , timestamps.

if you're desperate save few bytes per date (again, mongo's padding , minimum block size , worth trouble in rare cases) can store dates 3 byte binary blob storing unsigned integer in yyyymmdd format, or 2 byte binary blob denoting "days since january 1st of year x" x must chosen appropriately since supports date range spanning 179 years.

edit: discussion below demonstrates viable approach in rare circumstances. basically; use mongo's native date type ;)


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