clock.now |> timestamp.to_calendar(calendar.utc_offset) let month = date.month |> calendar.month_to_string let day = date.day |> int.to_string let year = date.year |> int.to_string io.println("Today is " <> month <> " " <> day <> ", " <> year <> ".") }">import bigben/clock.{type Clock}
import bigben/fake_clock
import gleam/int
import gleam/io
import gleam/time/calendar
import gleam/time/duration
import gleam/time/timestamp

pub fn main() {
// In your production code, you'll use the real `Clock` to get the time
// from the system:
let clock = clock.new()
what_day_is_it(clock)
// Today is July 26, 2025.

// In test code you can construct a `FakeClock`:
let assert Ok(now) = timestamp.parse_rfc3339("2024-04-08T02:26:31.464Z")
let fake_clock = fake_clock.new_at(now)
// and pass it off as a real `Clock`:
let clock = clock.from_fake(fake_clock)

what_day_is_it(clock)
// Today is April 8, 2024.

// We can then manipulate the clock to help us in our tests:
fake_clock.advance(fake_clock, duration.hours(4 * 24))

what_day_is_it(clock)
// Today is April 12, 2024.
}

fn what_day_is_it(clock: Clock) {
let #(date, _time) =
clock |> clock.now |> timestamp.to_calendar(calendar.utc_offset)

let month = date.month |> calendar.month_to_string
let day = date.day |> int.to_string
let year = date.year |> int.to_string

io.println("Today is " <> month <> " " <> day <> ", " <> year <> ".")
}