[CrazY.]

Hmm, few examples not complex, but this really will depend about what each one need.

Spoiler

#include <amxmdx>

#define SetPlayerBit(%1,%2)     (%1 |= (1<<(%2&31)))
#define ClearPlayerBit(%1,%2)   (%1 &= ~(1 <<(%2&31)))
#define CheckPlayerBit(%1,%2)   (%1 & (1<<(%2&31)))

new g_fIsBanned;

public plugin_init()
{
    register_plugin("Get Task Time - Example 1", "1.0", "Crazy");

    register_clcmd("say banme", "CmdBanMe");
    register_clcmd("say bantime", "CmdBanTime");

}

public CmdBanMe(this)
{
    if (CheckPlayerBit(g_fIsBanned, this))
    {
        client_print(this, print_chat, "You're already banned.");
        return PLUGIN_HANDLED;
    }

    SetPlayerBit(g_fIsBanned, this);

    set_task(2.0, "TaskUnbanMe", this);
    client_print(this, print_chat, "You're now banned.");

    return PLUGIN_HANDLED;
}

public CmdBanTime(this)
{
    if (!CheckPlayerBit(g_fIsBanned, this))
    {
        client_print(this, print_chat, "You're not banned.");
        return PLUGIN_HANDLED;
    }

    client_print(this, print_chat, "Your ban will expires in [%.2f]", get_task_time_ex(this, 0, GetTaskTime_Remaining));
    return PLUGIN_HANDLED;
}

public TaskUnbanMe(this)
{
    ClearPlayerBit(g_fIsBanned, this);

    client_print(this, print_chat, "You're no longer banned [total ban time: %.2f]", get_task_time_ex(this, 0, GetTaskTime_None));
}

Spoiler

#include <amxmdx>

const TASK_ANNOUNCE = 100;

public plugin_init()
{
    register_plugin("Get Task Time - Example 2", "1.0", "Crazy");
}

public plugin_cfg()
{
    set_task(5.0, "TaskShowTime". .flags = SetTask_Repeat);
    set_task_ex(30.0, "TaskAnnounceWinner", TASK_ANNOUNCE, .flags = SetTask_Repeat);
}

public TaskAnnounceWinner(iTask)
{
    new rgPlayers[MAX_PLAYERS], szPlayerName[32], iPlayersCount, pevPlayer;

    get_players_ex(rgPlayers, iPlayersCount, GetPlayers_ExcludeHLTV);

    pevPlayer = rgPlayers[random(iPlayersCount)];

    get_user_name(pevPlayer, szPlayerName, charsmax(szPlayerName));

    client_print(0, print_chat, "%s WON THE LOTTERY!!!", szPlayerName);
    client_print(0, print_chat, "Next announce in %0.2f seconds", get_task_time_ex(TASK_ANNOUNCE, 0, GetTaskTime_Remaining));
}

public TaskShowTime(iTask)
{
    client_print(0, print_chat, "A winner will be announced in %0.2f seconds", get_task_time_ex(TASK_ANNOUNCE, 0, GetTaskTime_Remaining));
}

Spoiler

#include <amxmdx>

public plugin_init()
{
    register_plugin("Get Task Time - Example 3", "1.0", "Crazy");

    register_event("HLTV", "EventNewRound", "a", "1=0", "2=0");
}

public EventNewRound()
{
    set_task_ex(1.0, "TaskCountdown", TASK_COUNTDOWN, .flags = SetTask_RepeatTimes, .repeat = 10);
}

public TaskCountdown(iTask)
{
    // Total repeat time
    new iTotalRepeat = get_task_time_ex(iTask, 0, GetTaskTime_RepeatTimes);

    // Current repeat (from 1 to iTotalRepeat)
    new iCurrentRepeat = get_task_time_ex(iTask, 0, GetTaskTime_RepeatTime);

    client_print(0, print_center, "The game will start in: %d", iTotalRepeat - iCurrentRepeat + 1);
}