Date conversion code behaving different on different machines

I have the below code:

package main

import (
    "fmt"
    "time"
)

func main() {
    loc := "Jan 06"
    date := "2020-12-31 16:00:00 +0000 UTC"
    layout := "2006-01-02 15:04:05 -0700 MST"
    t, err := time.Parse(layout, date)
    if err != nil {
        fmt.Print("Error")
    }

    fmt.Println(t)
    GetFormattedDate(t, loc)
}

func GetFormattedDate(date time.Time, layout string) (string, error) {
    
    fmt.Println("\n\n====================================================")
    fmt.Println("time.Now(): ", time.Now())
    fmt.Println("time.Now().Location(): ", time.Now().Location())
    fmt.Println("Converting: ", date)
    configLocale := "Singapore"
    fmt.Println("configLocale: ", configLocale)

    loc, err := time.LoadLocation(configLocale)
    fmt.Println("loc: ", loc)
    if err != nil {
        return "", err
    }

    date = date.In(loc)
    fmt.Println("date.In(loc): ", date)
    fmt.Println("layout: ", layout)
    converted := fmt.Sprintf(date.Format(layout))
    fmt.Println("converted fmt: ", converted)
    fmt.Println("\n\n==================================================")
    return fmt.Sprintf(date.Format(layout)), nil
}

When I run it locally I get:

====================================================
time.Now():  2009-11-10 23:00:00 +0000 UTC m=+0.000000001
time.Now().Location():  Local
Converting:  2020-12-31 16:00:00 +0000 UTC
configLocale:  Singapore
loc:  Singapore
date.In(loc):  2021-01-01 00:00:00 +0800 +08 // This is the issue
layout:  Jan 06
converted fmt:  Jan 21


==================================================

But when I run the same code on my linux box server, I get:

time.Now(): 2020-10-24 09:04:22.256288497 +0000 UTC m=+252.011109438
time.Now().Location(): UTC
Converting: 2020-12-31 16:00:00 +0000 UTC
msg":"configLocale: Singapore
msg":"loc: Singapore
date.In(loc): 2020-12-31 16:00:00 +0000 +0000 // This is the issue
layout: Jan 06
converted fmt: Dec 20

What I am trying to do:

I am trying to convert: 2020-12-31 16:00:00 +0000 UTC into a locale specific date, locale being Singapore. My layout is Jan 06

For one machine this date converts to Dec 20 and for another it converts to Jan 21

Specifically when I dig deeper, I feel the method date = date.In(loc) returns different result on different machines despite setting location to Singapore and passing it explicitly, as is evident in the logs.

Playground

However on the server commandline:

/ # zdump Singapore 
Singapore  Mon Oct 26 02:10:18 2020 +08

Any suggestions how do I solve this issue?