Lua

Date/Time Expires Within N Seconds/Minutes/Hours/Days

Demonstrates the how to tell if a date/time is within N seconds, minutes, hours, or days of the current system time. Lua

local chilkat = require("chilkat")

local dt = chilkat.DateTime.new()

-- Set to the current system date/time.
dt:set_from_current_system_time()
print("Now: " .. dt:get_as_timestamp(true))

-- Add 10 minutes, making the date 10 minutes in the future.
dt:add_seconds(600)
print("10 minutes from now: " .. dt:get_as_timestamp(true))

-- Is the date/time within 10 seconds of expiration (i.e. within 10 seconds of now)?
local b = dt:expires_within(10, "seconds")
print("Expires within 10 seconds: " .. tostring(b))

-- Does the date/time expire within 5 minutes?
b = dt:expires_within(5, "minutes")
print("Expires within 5 minutes: " .. tostring(b))

-- Does the date/time expire within 15 minutes?
b = dt:expires_within(15, "minutes")
print("Expires within 15 minutes: " .. tostring(b))

-- Does the date/time expire within 1 hour?
b = dt:expires_within(1, "hour")
print("Expires within 1 hour: " .. tostring(b))

-- Does the date/time expire within 1 day?
b = dt:expires_within(1, "day")
print("Expires within 1 day: " .. tostring(b))

-- Output:

--     Now: 2017-05-05T23:48:00-0500
--     10 minutes from now: 2017-05-05T23:58:00-0500
--     Expires within 10 seconds: False
--     Expires within 5 minutes: False
--     Expires within 15 minutes: True
--     Expires within 1 hour: True
--     Expires within 1 day: True