EXPERIMENTAL — NOT AN ADOPTED INTERNATIONAL TIME STANDARD
HELLAS PLANITIA · 70°E
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LOCAL CIVIL TIME · MCT +02:40

The deepest basin on Mars

Hellas Planitia is one of the largest, deepest impact basins on Mars, runs 2 hours 40 minutes ahead of Arabia Terra's civil time.

Relation to the civil origin

Hellas Planitia's local civil time is derived from the Arabia Terra reference (MCT) with a +02:40 offset. This is not an independent standard — it is a regional display derived from MCT.

Function assignment — evidence status

Hypothesis — Resource Potential

Hellas is confirmed as Mars's deepest impact basin (~8 km), with USGS-documented evidence of hydrated phyllosilicates and past ice/lake deposits. Water and mineral resource potential is real; a designated "mining base" function is an interpretation drawn from that potential, not an official designation.

References: USGS Mars geologic mapping; see /research for methodology.