[#bsl-operator_h-04] = xref:bsl.adoc[bsl]::operator""_h :relfileprefix: ../ :mrdocs: Create a `bsl::chrono::duration` object having the `bsl::ratio<3600, 1>` duration period and initialized with the specified `hrs` number of hours. == Synopsis Declared in `<bslstl_chrono.h>` [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- constexpr std::chrono::hours operator""_h(unsigned long long hrs); ---- [.small]#Created with https://www.mrdocs.com[MrDocs]#