Epoch & Time Zone Conversion - Knowledge Base

Overview

The beaconcha.in API provides some data indexed by epoch. To better understand the relationship between time and epochs, you can use the Slot Finder tool and the time constants provided below.

We are developing endpoints designed to streamline the retrieval of summarized data for user-defined periods. Manually summing up rewards epoch-by-epoch doesn’t scale well for many validators over long timeframes.

Ethereum Time Constants

Constant	Value	Description
Genesis Timestamp	`1606824023`	December 1, 2020, 12:00:23 UTC
Seconds per Slot	`12`	Time between slots
Slots per Epoch	`32`	Slots in one epoch
Seconds per Epoch	`384`	32 × 12 seconds
Epochs per Day	`225`	86,400 / 384
Epochs per Year	`~82,125`	365 × 225

Introduction — Overview and endpoint comparison
Custom Range Rewards — Calculate rewards for any date range
Tax Year Calculations — Calculate rewards for specific tax years