# What will happen to Julia's DateTime type

**URL:** <https://discourse.julialang.org/t/what-will-happen-to-julias-datetime-type/140048>\
**Category:** General Usage\
**Tags:** datetime\
**Created:** [October 16, 2026, 6:00am UTC](https://discourse.julialang.org/t/what-will-happen-to-julias-datetime-type/140048 "2026-10-16T06:00:41Z")\
**Posts on this page:** 1\
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**Author:** ![rafael.guerra](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/rafael.guerra/32/216610_2.png) [@rafael.guerra](https://discourse.julialang.org/u/rafael.guerra)\
**Post date:** [October 16, 2026, 11:11am UTC](https://discourse.julialang.org/t/what-will-happen-to-julias-datetime-type/140048/4 "2026-10-16T11:11:25Z")

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> [@fabiangans](#):
>
> DateTime currently follows UT which keeps the clocks synchronized with solar noon/midnight by defining a second through the duration of the Earth’s rotation.

If that is what the doc says, it seems it has not been fixed since [this thread](https://discourse.julialang.org/t/universal-time-vs-utc-time-in-dates/103204). The understanding there seems to be that a docs fix saying “UTC-like, no leap seconds, not UT1” would be reasonable. The type itself needs no change.

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