# [Python 2], <s>231</s> <s>222</s> <s>216</s> <s>202</s> 197 bytes

<!-- language-all: lang-python -->

    from random import*
    from datetime import*
    t=date.today()
    d=[(((`x`,"[ ]")[x<t.day],"[@]")[x==t.day],`x`)[t.month<12or t.day>25]for x in sample(range(1,26),25)]
    while d:print' '.join(d[0:5]);d=d[5:]

[Try it online!][TIO-k46trxl4]

[Python 2]: https://docs.python.org/2/
[TIO-k46trxl4]: https://tio.run/##PY5NCsMgGET3OYVkEy1BGiFdpLH0HiJE0DSW@IP9oMnprQ2lq@G9mcXEHZbgWc5zCg4l5XUJ62JIcKoOpxUYsM78LfCvohC02jGpNBcY42mb2logWROxjUBLJQvfD@b8J8qICKAueFjGjoWEjuLGejkX2JD16KVcXA0uTx4Gdy27kJb1RFbvxa4G6SEm66FBDX0G67EW56GX5Kq5Fv0gc/4A "Python 2 – Try It Online"