user4845: I need help in calculating Slot Number from Current Epoch and Slot. Is there a formula to calculate that?

user252: You can check the genesis file for timestamp network started on (mainnet/testnet started on Byron) and use epoch/Slot for Byron (where an epoch consisted of 21600 slots, 1 slot being 20s) and shelley (where epoch consists of 432000 slots, 1 slot being 1s) respectively - all of this is in genesis JSONs you refer your node to on startup. The important bit here is knowing when Byron transited to Shelley, for mainnet, the epoch was 208.
You can find sample of how gLiveView calculates it here. You can also use ogmios to fetch era info from node (or use dbsync to know which epoch did forks get applied in).

4845: <p>I need help in calculating Slot Number from Current Epoch and Slot. Is there a formula to calculate that?</p>
 252: <p>You can check the genesis file for timestamp network started on (mainnet/testnet started on Byron) and use epoch/Slot for Byron (where an epoch consisted of 21600 slots, 1 slot being 20s) and shelley (where epoch consists of 432000 slots, 1 slot being 1s) respectively - all of this is in genesis JSONs you refer your node to on startup. The important bit here is knowing when Byron transited to Shelley, for mainnet, the epoch was 208.</p>
<p>You can find sample of how gLiveView calculates it <a href="https://github.com/cardano-community/guild-operators/blob/alpha/scripts/cnode-helper-scripts/env#L580-L645" rel="nofollow noreferrer">here</a>. You can also use ogmios to fetch era info from node (or use dbsync to know which epoch did forks get applied in).</p>
