You can check the height to date mappings here or here

Now use

monero-wallet-cli --wallet-file mywallet

Then use one of the following commands:

a) Full rescan from block 0

rescan_bc

This tells the wallet to forget all cached transactions and re-scan the entire blockchain. ⚠️ It will take time (especially if you start from genesis).

b) Rescan from a specific height

If you know the approximate height when you first received XMR:

set refresh-from-block-height 3000000
rescan_bc

• Monero 'Fluorine Fermi' (v0.18.3.3-release)

• https://docs.getmonero.org/interacting/monero-wallet-cli-reference/#restore-wallet
• https://www.getmonero.org/resources/user-guides/monero-wallet-cli.html