TIME_ZONE_INFORMATION

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct SYSTEMTIME
{
    public ushort wYear;
    public ushort wMonth;
    public ushort wDayOfWeek;
    public ushort wDay;
    public ushort wHour;
    public ushort wMinute;
    public ushort wSecond;
    public ushort wMilliseconds;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct TIME_ZONE_INFORMATION
{
    public int Bias;
    [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)] public string StandardName;
    public SYSTEMTIME StandardDate;
    public int StandardBias;
    [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)] public string DaylightName;
    public SYSTEMTIME DaylightDate;
    public int DaylightBias;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure SYSTEMTIME
    Public wYear As UShort
    Public wMonth As UShort
    Public wDayOfWeek As UShort
    Public wDay As UShort
    Public wHour As UShort
    Public wMinute As UShort
    Public wSecond As UShort
    Public wMilliseconds As UShort
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure TIME_ZONE_INFORMATION
    Public Bias As Integer
    <MarshalAs(UnmanagedType.ByValTStr, SizeConst:=32)> Public StandardName As String
    Public StandardDate As SYSTEMTIME
    Public StandardBias As Integer
    <MarshalAs(UnmanagedType.ByValTStr, SizeConst:=32)> Public DaylightName As String
    Public DaylightDate As SYSTEMTIME
    Public DaylightBias As Integer
End Structure

import ctypes
from ctypes import wintypes

class SYSTEMTIME(ctypes.Structure):
    _fields_ = [
        ("wYear", ctypes.c_ushort),
        ("wMonth", ctypes.c_ushort),
        ("wDayOfWeek", ctypes.c_ushort),
        ("wDay", ctypes.c_ushort),
        ("wHour", ctypes.c_ushort),
        ("wMinute", ctypes.c_ushort),
        ("wSecond", ctypes.c_ushort),
        ("wMilliseconds", ctypes.c_ushort),
    ]

class TIME_ZONE_INFORMATION(ctypes.Structure):
    _fields_ = [
        ("Bias", ctypes.c_int),
        ("StandardName", ctypes.c_wchar * 32),
        ("StandardDate", SYSTEMTIME),
        ("StandardBias", ctypes.c_int),
        ("DaylightName", ctypes.c_wchar * 32),
        ("DaylightDate", SYSTEMTIME),
        ("DaylightBias", ctypes.c_int),
    ]

#[repr(C)]
pub struct SYSTEMTIME {
    pub wYear: u16,
    pub wMonth: u16,
    pub wDayOfWeek: u16,
    pub wDay: u16,
    pub wHour: u16,
    pub wMinute: u16,
    pub wSecond: u16,
    pub wMilliseconds: u16,
}

#[repr(C)]
pub struct TIME_ZONE_INFORMATION {
    pub Bias: i32,
    pub StandardName: [u16; 32],
    pub StandardDate: SYSTEMTIME,
    pub StandardBias: i32,
    pub DaylightName: [u16; 32],
    pub DaylightDate: SYSTEMTIME,
    pub DaylightBias: i32,
}

import "golang.org/x/sys/windows"

type SYSTEMTIME struct {
	wYear uint16
	wMonth uint16
	wDayOfWeek uint16
	wDay uint16
	wHour uint16
	wMinute uint16
	wSecond uint16
	wMilliseconds uint16
}

type TIME_ZONE_INFORMATION struct {
	Bias int32
	StandardName [32]uint16
	StandardDate SYSTEMTIME
	StandardBias int32
	DaylightName [32]uint16
	DaylightDate SYSTEMTIME
	DaylightBias int32
}

type
  SYSTEMTIME = record
    wYear: Word;
    wMonth: Word;
    wDayOfWeek: Word;
    wDay: Word;
    wHour: Word;
    wMinute: Word;
    wSecond: Word;
    wMilliseconds: Word;
  end;

  TIME_ZONE_INFORMATION = record
    Bias: Integer;
    StandardName: array[0..31] of WideChar;
    StandardDate: SYSTEMTIME;
    StandardBias: Integer;
    DaylightName: array[0..31] of WideChar;
    DaylightDate: SYSTEMTIME;
    DaylightBias: Integer;
  end;

const SYSTEMTIME = extern struct {
    wYear: u16,
    wMonth: u16,
    wDayOfWeek: u16,
    wDay: u16,
    wHour: u16,
    wMinute: u16,
    wSecond: u16,
    wMilliseconds: u16,
};

const TIME_ZONE_INFORMATION = extern struct {
    Bias: i32,
    StandardName: [32]u16,
    StandardDate: SYSTEMTIME,
    StandardBias: i32,
    DaylightName: [32]u16,
    DaylightDate: SYSTEMTIME,
    DaylightBias: i32,
};

type
  SYSTEMTIME {.bycopy.} = object
    wYear: uint16
    wMonth: uint16
    wDayOfWeek: uint16
    wDay: uint16
    wHour: uint16
    wMinute: uint16
    wSecond: uint16
    wMilliseconds: uint16

  TIME_ZONE_INFORMATION {.bycopy.} = object
    Bias: int32
    StandardName: array[32, uint16]
    StandardDate: SYSTEMTIME
    StandardBias: int32
    DaylightName: array[32, uint16]
    DaylightDate: SYSTEMTIME
    DaylightBias: int32

struct SYSTEMTIME
{
    ushort wYear;
    ushort wMonth;
    ushort wDayOfWeek;
    ushort wDay;
    ushort wHour;
    ushort wMinute;
    ushort wSecond;
    ushort wMilliseconds;
}

struct TIME_ZONE_INFORMATION
{
    int Bias;
    wchar[32] StandardName;
    SYSTEMTIME StandardDate;
    int StandardBias;
    wchar[32] DaylightName;
    SYSTEMTIME DaylightDate;
    int DaylightBias;
}