A Match and it got Dark

1. It sounds to me like your opponent would be justified in wanting to suspend play. I assume there was no member of the Committee handy so in the event of a disagreement you would need to have it resolved by a Committee member - by which time it would no doubt definitely be too dark.

2. Pick up from where you left off.

This situation is covered in Rule 5.7. I have posted a few extracts here but feel free to look at the Rule in full for yourself.

5.7a
When Players May or Must Stop Play
During a round, a player must not stop play except in these cases:

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Stopping Play by Agreement in Match Play. Players in a match may agree to stop play for any reason, except if doing so delays the competition. If they agree to stop play and then one player wants to resume play, the agreement has ended and the other player must resume play.

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If a player stops play for any reason not allowed under this Rule or fails to report to the Committee when required to do so, the player is disqualified.

5.7b
What Players Must Do When Committee Suspends Play
There are two types of Committee suspensions of play, each with different requirements for when players must stop play.

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(2) Normal Suspension (Such as for Darkness or Unplayable Course). If the Committee suspends play for normal reasons, what happens next depends on where each playing group is:

Between Two Holes. If all players in the group are between two holes, they must stop play and must not make a stroke to begin another hole until the Committee resumes play.

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If the players do not agree on what to do:
Match Play. If the opponent stops play, the player must also stop play and both players must not play again until the Committee resumes play. If the player does not stop play, the player gets the general penalty (loss of hole).

Penalty for Breach of Rule 5.7b: Disqualification.

Exception – No Penalty If Committee Decides That Failure to Stop Was Justified: There is no breach of this Rule and no penalty if the Committee decides that circumstances justified the player’s failure to stop play when required to do so.

5.7c
What Players Must Do When Play Resumes
(1) Where to Resume Play. A player must resume play from where they stopped play on a hole or, if between two holes, at the next teeing area, even if play is resumed on a later day.

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