# \`DateTime\` arithmetic on \`Microsecond\` (or smaller) scale

**URL:** <https://discourse.julialang.org/t/datetime-arithmetic-on-microsecond-or-smaller-scale/102949>\
**Category:** Internals & Design\
**Tags:** dates, datetime\
**Created:** [August 18, 2023, 12:39pm UTC](https://discourse.julialang.org/t/datetime-arithmetic-on-microsecond-or-smaller-scale/102949 "2023-08-18T12:39:34Z")\
**Posts on this page:** 1\
**Showing post:** 107

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**Author:** ![danielwe](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/danielwe/32/35657_2.png) [@danielwe](https://discourse.julialang.org/u/danielwe)\
**Post date:** [August 25, 2023, 3:26pm UTC](https://discourse.julialang.org/t/datetime-arithmetic-on-microsecond-or-smaller-scale/102949/107 "2023-08-25T15:26:45Z")

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> [@dlakelan](#):
>
> and then discover the time difference between the first one and the tenth one (or whatever)

That’s fair, just note that it would add some implementation complexity and maintenance burden in that your module now needs to know about leap seconds (assuming UTC timestamps).

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