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multi: be consistent with UTC conversion of timestamp #976

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ellemouton
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Since we convert to UTC timestamps at persistence read/write time, we gotta make sure to compare against a consistent Local when comparing against time.Now() in the code.

@ellemouton ellemouton self-assigned this Feb 12, 2025
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Leaving a few small comments.

@@ -190,7 +190,7 @@ func (s *sessionRpcServer) AddSession(ctx context.Context,
req *litrpc.AddSessionRequest) (*litrpc.AddSessionResponse, error) {

expiry := time.Unix(int64(req.ExpiryTimestampSeconds), 0)
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I think this one should also be:

Suggested change
expiry := time.Unix(int64(req.ExpiryTimestampSeconds), 0)
expiry := time.Unix(int64(req.ExpiryTimestampSeconds), 0).UTC()

Or we need to update protos to declare that the timestamp should explicitly be sent in through the request in UTC?

@@ -839,7 +839,7 @@ func (s *sessionRpcServer) AddAutopilotSession(ctx context.Context,
}

expiry := time.Unix(int64(req.ExpiryTimestampSeconds), 0)
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Same here

Comment on lines 135 to +137
startTime := time.Now().Add(
-time.Duration(rateLim.NumHours) * time.Hour,
)
).UTC()
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This should be:

	startTime := time.Now().UTC().Add(
		-time.Duration(rateLim.NumHours) * time.Hour,
	)

Else there can be an discrepancy when the local timezone conversion happens right at a boundary of DST.

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thank goodness we dont need this

@ellemouton ellemouton closed this Feb 12, 2025
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2 participants