let response = {
    "locationData": {
        "tz": "America/New_York",
    }
};

let options = { timeZone: response.locationData.tz, timeZoneName: 'short' };
let localTime = new Intl.DateTimeFormat([], options).format(new Date());

console.log("The user is visiting from the timezone:", response.locationData.tz, "and the local time is:", localTime);

package main

import (
	"fmt"
	"time"
)

var response = map[string]map[string]string{
	"locationData": {
		"tz": "America/New_York",
	},
}

func main() {
	loc, _ := time.LoadLocation(response["locationData"]["tz"])
	localTime := time.Now().In(loc).Format("2006-01-02 15:04:05 MST")
	fmt.Println("The user is visiting from the timezone:", response["locationData"]["tz"], "and the local time is:", localTime)
}

from datetime import datetime
import pytz

response = {
    "locationData": {
        "tz": "America/New_York",
    }
}

tz = pytz.timezone(response['locationData']['tz'])
localTime = datetime.now(tz).strftime('%Y-%m-%d %H:%M:%S %Z')

print("The user is visiting from the timezone:", response['locationData']['tz'], "and the local time is:", localTime)

Generating future events for scheduling

Often, we need to schedule a future event to trigger a marketing email or a cron job. The following example shows how to generate such a future timestamp in Postgresql's extended format that's also easy to read : 2003-04-12 04:05:06 America/New_York.

let response = {
    "locationData": {
        "tz": "America/New_York",
    }
};

let now = new Date();
// Get the first day of next month at 11am
let firstDayNextMonth = new Date(now.getFullYear(), now.getMonth() + 1, 1, 11, 0, 0);
let options = { timeZone: response.locationData.tz, hour12: false, year: 'numeric', month: '2-digit', day: '2-digit', hour: '2-digit', minute: '2-digit', second: '2-digit' };
// Format the time to be Postgres friendly and concatenate the timezone
let formattedTime = new Intl.DateTimeFormat([], options).format(firstDayNextMonth) + " " + response.locationData.tz;

console.log(formattedTime);  // Output: 2023-11-01 11:00:00 America/New_York

package main

import (
	"fmt"
	"time"
)

var response = map[string]map[string]string{
	"locationData": {
		"tz": "America/New_York",
	},
}

func main() {
	loc, _ := time.LoadLocation(response["locationData"]["tz"])
	now := time.Now()
	// Get the first day of next month at 11am
	firstDayNextMonth := time.Date(now.Year(), now.Month()+1, 1, 11, 0, 0, 0, loc)
	// Format the time to be Postgres friendly and concatenate the timezone
	formattedTime := firstDayNextMonth.Format("2006-01-02 15:04:05 ") + response["locationData"]["tz"]
	fmt.Println(formattedTime)  // Output: 2023-11-01 11:00:00 America/New_York
}

from datetime import datetime, timedelta
import pytz

response = {
    "locationData": {
        "tz": "America/New_York",
    }
}

now = datetime.now()
# Get the first day of next month at 11am
first_day_next_month = datetime(now.year, now.month + 1, 1, 11, 0, 0)
tz = pytz.timezone(response['locationData']['tz'])
local_time = tz.localize(first_day_next_month)
# Format the time to be Postgres friendly and concatenate the timezone
formatted_time = local_time.strftime('%Y-%m-%d %H:%M:%S ') + response['locationData']['tz']

print(formatted_time)  # Output: 2023-11-01 11:00:00 America/New_York