# last_block_time · Rell standard library · Chromia Docs (concept)

> val last_ block_ time: integer The timestamp of the most recent completed block in the blockchain, in milliseconds. The most recent completed block is the 

Source: https://docs.chromia.com/pages/rell-stdlib/-rell-system-library/op_context/last_block_time/

PROPERTY

# last\_block\_time

```signature
val last_block_time: integer
```

The timestamp of the most recent completed block in the blockchain, in milliseconds.

The most recent completed block is the parent block of the block currently being built.

If there is no most recent completed block (i.e. if the first block in the blockchain is still being
built), this will have the value `-1`.

In either case, this is a [Unix epoch timestamp](https://en.wikipedia.org/wiki/Unix_time), i.e. the
number of milliseconds that have elapsed since midnight on 1st January 1970.

**Throws**

* `exception` — if there is no operation context

Since 0.6.1

[View this page on docs.chromia.com](https://docs.chromia.com/pages/rell-stdlib/-rell%20-system%20-library/op_context/last_block_time.html)Generated API reference, mirrored from the live docs