Add DateFromUnixTime

[ryanleecode]

What is the problem this feature would solve?

No easy constructor to create date from unix time.

What is the feature you are proposing to solve the problem?

import { Schema } from 'effect'

export const UnixTime = Schema.Int.pipe(
  Schema.nonNegative(),
  Schema.brand('UnixTime'),
)

const isUnixTime = Schema.is(UnixTime)

export const DateFromUnixTime = Schema.transform(
  UnixTime,
  Schema.DateFromSelf.pipe(
    Schema.filter((date) => isUnixTime(date.getTime() / 1000)),
  ),
  {
    strict: false,
    decode: (time) => new Date(time * 1000),
    encode: (date) => Math.floor(date.getTime() / 1000),
  },
)

What alternatives have you considered?

No response