[#BloombergLP-baltzo]
= xref:BloombergLP.adoc[BloombergLP]::baltzo
:relfileprefix: ../
:mrdocs:

Package namespace for time‐zone components.

== Types

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/baltzo/DataFileLoader.adoc[`DataFileLoader`] 
| Concrete `Loader` for Zoneinfo binary files on the file system.
| xref:BloombergLP/baltzo/DefaultZoneinfoCache.adoc[`DefaultZoneinfoCache`] 
| This struct provides a namespace for functions that manage and access the default time‐zone data cache.
| xref:BloombergLP/baltzo/DefaultZoneinfoCacheScopedGuard.adoc[`DefaultZoneinfoCacheScopedGuard`] 
| Scoped guard that installs a temporary default Zoneinfo cache.
| xref:BloombergLP/baltzo/DstPolicy.adoc[`DstPolicy`] 
| Namespace for enumerating daylight‐saving time (DST) policies.
| xref:BloombergLP/baltzo/ErrorCode.adoc[`ErrorCode`] 
| Namespace for enumerating named error codes for the `baltzo` package.
| xref:BloombergLP/baltzo/Loader.adoc[`Loader`] 
| This class provides a protocol (a pure abstract interface) for loading a time zone object.
| xref:BloombergLP/baltzo/LocalDatetime.adoc[`LocalDatetime`] 
| This unconstrained (value‐semantic) attribute class characterizes a date‐time with UTC offset and a time‐zone identifier.
| xref:BloombergLP/baltzo/LocalTimeDescriptor.adoc[`LocalTimeDescriptor`] 
| This simply constrained (value‐semantic) attribute class characterizes a subset of local time values.
| xref:BloombergLP/baltzo/LocalTimeOffsetUtil.adoc[`LocalTimeOffsetUtil`] 
| Namespace for a `bdlt::LocalTimeOffset` callback and timezone utilities.
| xref:BloombergLP/baltzo/LocalTimePeriod.adoc[`LocalTimePeriod`] 
| This complex‐constrained (value‐semantic) attribute class describes a range of time in which a particular local time description is in effect.
| xref:BloombergLP/baltzo/LocalTimeValidity.adoc[`LocalTimeValidity`] 
| Namespace for enumerating local time validity codes.
| xref:BloombergLP/baltzo/TestLoader.adoc[`TestLoader`] 
| Concrete test implementation of the `Loader` protocol for Zoneinfo.
| xref:BloombergLP/baltzo/TimeZoneUtil.adoc[`TimeZoneUtil`] 
| Namespace for utilities that convert times between time zones.
| xref:BloombergLP/baltzo/TimeZoneUtilImp.adoc[`TimeZoneUtilImp`] 
| This `struct` provides a namespace for utility functions that convert time values to, and from, local time.
| xref:BloombergLP/baltzo/WindowsTimeZoneUtil.adoc[`WindowsTimeZoneUtil`] 
| This `struct` provides a namespace for utility functions that convert Zoneinfo time‐zone identifiers both to and Windows time‐zone identifiers.
| xref:BloombergLP/baltzo/Zoneinfo.adoc[`Zoneinfo`] 
| This value‐semantic type holds Zoneinfo (or "Olson") time‐zone data for a single locale.
| xref:BloombergLP/baltzo/ZoneinfoBinaryHeader.adoc[`ZoneinfoBinaryHeader`] 
| This simply constrained (value‐semantic) attribute class represents a Zoneinfo binary‐file header.
| xref:BloombergLP/baltzo/ZoneinfoBinaryReader.adoc[`ZoneinfoBinaryReader`] 
| This struct provides a namespace for functions that read Zoneinfo time zone data from a binary input stream.
| xref:BloombergLP/baltzo/ZoneinfoCache.adoc[`ZoneinfoCache`] 
| This class provides a cache for time‐zone information.
| xref:BloombergLP/baltzo/ZoneinfoTransition.adoc[`ZoneinfoTransition`] 
| This unconstrained _in‐core_ value‐semantic class characterizes a transition when a time zone's local time value changes.
| xref:BloombergLP/baltzo/ZoneinfoUtil.adoc[`ZoneinfoUtil`] 
| This `struct` provides a namespace for utility operations using a `Zoneinfo` object.
|===


== Functions

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/baltzo/swap-09f.adoc[`swap`] 
| `swap` overloads
| xref:BloombergLP/baltzo/operator_lshift-09.adoc[`operator<<`] 
| Stream insertion operators
| xref:BloombergLP/baltzo/operator_eq-059.adoc[`operator==`] 
| Equality operators
| xref:BloombergLP/baltzo/operator_not_eq-0b.adoc[`operator!=`] 
| Inequality operators
| xref:BloombergLP/baltzo/operator_lt.adoc[`operator<`] 
| Return whether `lhs` is ordered before `rhs` by UTC time.
|===



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