diff --git a/mmcli.py b/mmcli.py
index 82bb2c3..9628035 100755
--- a/mmcli.py
+++ b/mmcli.py
@@ -9,6 +9,7 @@ import re
 from time import sleep
 import threading
 import mattermost
+from parsedt import parse_datetime_to_utc
 
 from mmws import MMws
 
@@ -323,6 +324,40 @@ def send(mm_api: mattermost.MMApi, cmdline_args):
 		print(sent)
 
 
+def status(mm_api: mattermost.MMApi, cmdline_args):
+	if not cmdline_args.status:
+		raise ValueError("No status selected")
+
+	until = None
+	if cmdline_args.until:
+		if cmdline_args.status != "dnd":
+			raise ValueError("--until works only with --dnd due to an API limitation")
+		until = parse_datetime_to_utc(cmdline_args.until)
+
+	# This API endpoint requires the user ID to be passed explicitly in the request body,
+	# duplicating the info in the URL. But "me" does not suffice here.
+	my_user_id = mm_api.get_user()["id"]
+
+	mm_api._put(f"/v4/users/me/status", data={
+		"user_id": my_user_id,
+		"status": cmdline_args.status,
+		"dnd_end_time": int(until.timestamp()) if until else None
+	})
+
+
+def customstatus(mm_api: mattermost.MMApi, cmdline_args):
+	until = parse_datetime_to_utc(cmdline_args.until) if cmdline_args.until else None
+
+	if cmdline_args.text or cmdline_args.emoji:
+		mm_api._put(f"/v4/users/me/status/custom", data={
+			"emoji": cmdline_args.emoji,
+			"text": cmdline_args.text,
+			"expires_at": until.isoformat() if until else None
+		})
+	else:
+		mm_api._delete(f"/v4/users/me/status/custom")
+
+
 def tsv_escape(text):
 	return text.replace("\\", "\\\\").replace("\t", r"\t").replace("\n", r"\n")
 
@@ -363,6 +398,8 @@ ACTIONS = {
 	"cat": {"function": cat},
 	"ls": {"function": ls},
 	"send": {"function": send},
+	"status": {"function": status},
+	"customstatus": {"function": customstatus},
 }
 
 FORMATTERS = { "json", "tsv" }
@@ -430,6 +467,19 @@ Hint: JSON output can be filtered on the command line with jq(1).
 	parser_send.add_argument(
 		"--attach", nargs="+", help="filename of file to attach")
 
+	parser_status = subparsers.add_parser("status", help="update user status")
+	parser_status.add_argument("--online",  dest="status", action="store_const", const="online",  help="Set status to online")
+	parser_status.add_argument("--away",    dest="status", action="store_const", const="away",    help="Set status to away")
+	parser_status.add_argument("--dnd",     dest="status", action="store_const", const="dnd",     help="Set status to 'do not disturb'")
+	parser_status.add_argument("--offline", dest="status", action="store_const", const="offline", help="Set status to offline")
+	parser_status.add_argument("--until", help="Datetime of when to clear the status (only for --dnd)")
+
+	parser_customstatus = subparsers.add_parser("customstatus",
+		help="update custom user status (emoji and message)")
+	parser_customstatus.add_argument("--until", help="Datetime of when to clear the custom status")
+	parser_customstatus.add_argument("--emoji", help="Name of emoji (without colons), e.g. coffee")
+	parser_customstatus.add_argument("text" ,   help="Text for the status", nargs="?")
+
 	parsed = argparser.parse_args()
 
 	if not parsed.server:
diff --git a/parsedt.py b/parsedt.py
new file mode 100644
index 0000000..8d215d6
--- /dev/null
+++ b/parsedt.py
@@ -0,0 +1,18 @@
+"""
+Wrapper around date/time parsing
+"""
+
+import datetime
+from dateutil.parser import parse
+
+
+def parse_datetime_to_utc(string) -> datetime.datetime:
+	parsed = parse(string)
+
+	if parsed.tzinfo is None:
+		# Convert to timezone aware datetime with the system's timezone
+		converted = parsed.astimezone()
+	else:
+		converted = parsed
+
+	return converted.astimezone(datetime.timezone.utc)
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..f4c462f
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,2 @@
+python-dateutil>=2.8.2,<3.0.0
+mattermost>=5.33.0