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Epoch Clock

1. Summary​

The PWN Epoch Clock provides the current epoch number in the PWN DAO context. One epoch is 4 weeks long and the epoch numbering starts with 1. INITIAL_EPOCH_TIMESTAMP is set at the deployment time and can be used to sync the clock between different chains.

3. Contract details​

  • PWNEpochClock.sol is written in Solidity version 0.8.25

Features​

  • Get current epoch
  • Set epoch start at deployment

Inherited contracts, implemented Interfaces and ERCs​

Functions​

currentEpoch

Overview​

Function to get the current epoch number. If this function is called before the clock start, 0 is returned.

This function doesn't take any arguments.

Implementation​

function currentEpoch() external view returns (uint16) {
    // timestamps prior to `INITIAL_EPOCH_TIMESTAMP` are considered to be in epoch 0
    if (block.timestamp < INITIAL_EPOCH_TIMESTAMP) {
        return 0;
    }
    // first epoch is 1
    uint256 epoch = (block.timestamp - INITIAL_EPOCH_TIMESTAMP) / SECONDS_IN_EPOCH + 1;
    return uint16(epoch); // safe cast for the next 5041 years after deployment
}