[tz] Beginner's help request

[Random832]

On Wed, Oct 18, 2017, at 20:08, Daniel Ford wrote:
> So now I've opened the 'africa' file and searched for
> Africa/Casablanca, but I only see *two* rules for 2017.  So how does
> the TZdb indicate that there are *four* transitions this year?

There are also 2014-2022 and 2013-2035 rules, for the regular DST
transitions in March and October respectively. (The other transitions
represent a 'hiatus' in DST for Ramadan, which can't be represented
easily in TZdb format, therefore why there are lines for every year.)