ClosingTimeCountdown

ClosingTimeCountdown defines the duration (in milliseconds) used to control how long an item stays in its closing phase — and how long that phase is extended when new bids are received.

🔧 Required When: `closingMethod = OVERLAPPING`

Any sale using the OVERLAPPING closing method must set this value.

It ensures that every item in the sale has a clear, consistent rule for how long it can stay open once it begins closing.

🔄 How It Works

When an item enters ITEM_CLOSING, its closingEnd is initialized as:

closingEnd = closingStart + closingTimeCountdown

If a bid is placed after closingStart but before closingEnd, the countdown is reset:

closingEnd = now() + closingTimeCountdown

🧠 This creates an anti-sniping mechanism — every valid bid placed in the final moments of an auction resets the clock, giving other bidders a fair chance to respond.

🧪 Example

If closingTimeCountdown = 120000 (2 minutes):

At 10:00:00 → item enters closing

→ closingEnd = 10:02:00

A bid is placed at 10:01:15

→ closingEnd = 10:03:15

Another bid comes at 10:02:45

→ closingEnd = 10:04:45

⏳ The auction keeps extending — but never more than 2 minutes ahead of the current time.

ClosingTimeCountdown

🔧 Required When: closingMethod = OVERLAPPING

🔄 How It Works

🧪 Example

🔧 Required When: `closingMethod = OVERLAPPING`