etl/docs/chrono/last_spec.md

title
last_spec

{{< callout type="info">}} Header: chrono.h
From: 20.41.0
Similar to: std::chrono::last_spec {{< /callout >}}

last_spec is a tag type that is used in conjunction with other calendar types to indicate the last thing in a sequence.

struct last_spec
{
  explicit last_spec() = default;
};

inline constexpr last_spec last{};

Example

2025_y/March/last for last day of March 2025 i.e. 2025-03-31