Macos High Sierra 10.13 6 Dmg |work| -

Then retry the installation. After the install completes, reconnect to Wi-Fi to auto-sync the correct date.

For those needing the legitimate installer, the safest method is often checking the "Purchases" tab in the Mac App Store on a machine capable of running it, or using the Apple Support site. Apple hides older installers in search results by default, but direct links are often available via Apple’s support knowledge base. macos high sierra 10.13 6 dmg