Interactive publication
Back to the catalogueTime-zone databaseCase 04 of 06
Political time change with short notice
Governments change offsets or DST with days of notice — Lebanon (2023), Egypt and Morocco (Ramadan DST), Samoa, Venezuela. The tzdb lags real life, so systems disagree for a window until they update.
Class
Case to account for
Affects
1 conversion
01
Detection
A recent announced change postdates the deployed tzdb release.
02
Mitigation
01
Track tzdb releases; expect and flag transient disagreement around announced changes.
02
Surface the tzdb version so a stale conversion is diagnosable.
03
Affected conversions
Timestamp + zonehour-of-week slot
OPEN