[time.zone.leap.members]

# 30 Time library [[time]](./#time)

## 30.11 Time zones [[time.zone]](time.zone#leap.members)

### 30.11.8 Class leap_second [[time.zone.leap]](time.zone.leap#members)

#### 30.11.8.2 Member functions [time.zone.leap.members]

[ð](#lib:date,leap_second)

`constexpr sys_seconds date() const noexcept;
`

[1](#1)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/time.tex#L10189)

*Returns*: The date and time at which the leap second was inserted[.](#1.sentence-1)

[ð](#lib:value,leap_second)

`constexpr seconds value() const noexcept;
`

[2](#2)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/time.tex#L10200)

*Returns*: +1s to indicate a positive leap second or-1s to indicate a negative leap second[.](#2.sentence-1)

[*Note [1](#note-1)*:

All leap seconds inserted up through 2022 were positive leap seconds[.](#2.sentence-2)

â *end note*]
