matchOffsetComponents constant
ZoneEqualityComparerOptions
const matchOffsetComponents
Instead of only comparing wall offsets, the standard/savings split is also considered. So when this option is used, two zones which both have a wall offset of +2 at one instant would be considered unequal if one of those offsets was +1 standard, +1 savings and the other was +2 standard with no daylight saving.
Implementation
static const ZoneEqualityComparerOptions matchOffsetComponents = ZoneEqualityComparerOptions(1 << 0);